version 18.4.2 (2024-10-07)

• Replaced CanSIPS-IC3 downloads with CanSIPS-IC4, and added CanESMS and GEMS5.2-NEMO; removed CanCM4i.
• Fixed problem with undefined Y date labels.
• Fixed problem reading dates with decimals for seconds.
• Corrected output of stations and indices when some are unused because of missing values.
• Replaced some Continue statements.
• Updated some Help pages.

version 18.4.1 (2024-06-25)

• Implemented new option to save EOF and CCA loadings as correlations (option 134).
• Enabled output of SVG maps.
• Restored cursor if an SVG file is unavailable.
• Fixed problem restoring sub-season length from project files,

version 18.3.2 (2024-06-10)

• Corrected indication of the type of principal components used.
• Fixed possible problem changing the type of principal component.
• Rescaled the regression coefficients in output file when using the correlation matrix.
• Fixed possible fatal error when prediction error variance is large.

version 18.3.1 (2024-05-28)

• Added goodness index calculations to Tools ~ Validate (options 417, 4127, and 427).
• Included a goodness index calculation for Tools ~ Validate that sets all negative correlations to zero in the averaging.
• Improved error messaging for reading station and index files.
• Suppressed output of CPT character tag when the tag has zero length.
• Permitted more than three parameters in a parameter output file.
• Simplified opening of goodness index optimisation output file.
• Prevented possible fatal error when calculating Spearman’s correlation.
• Simplified goodness index averaging.
• Simplified calculation of Kendall’s tau-c.
• Fixed problem saving discrete absolute thresholds.
• Fixed possible fatal error running mean and variance bias correction in GCM.
• Corrected ECMWF downloads to SEAS51.
• Reorganised some modules.
• Updated Help pages.

version 18.2.4 (2023-12-29)

• Included persistence component in start-at date.
• Improved identification of appropriate start-at dates.
• Improved date indicators for the X file when the Y file is opened first and aggregation is to be performed.
• Fixed possible problems when daily Y file ends mid-subseason.
• Fixed possible problem with seasonal aggregation.
• Fixed some leap-year-related problems.
• Fixed occasional problem inaccurately estimating number of available data.
• Removed prompt for threshold in batch version when total or average seasonal aggregation is selected.
• Set minimum number of forecasts in batch version to 1.
• Corrected possible problem with missing value replacement when using persistence.
• Changed permit-monthly X-sequencing flag to a logical in some instances.
• Created an internal subroutine to break-up a long function.
• Monthly sequencing permitted in merge by default.
• Added maximum and minimum temperatures to CanSIPS-IC3 downloads.

version 18.2.3 (2023-11-29)

• Aggregation to counts and occurrences recognised as discrete.
• Suppressed units conversion warning message when cpt:field tags are eqiuvalent but not identical.
• Corrected some estimates of length of climatological period for sub-seasonal forecasts.
• Prevented possible fatal error when saving project file with results after setting a skillmask but not running the forecasts.

version 18.2.2 (2023-11-27)

• Improved date-formatting for some periods that span the year-end.
• Corrected dates in some output files.
• Fixed possible spurious kendall’s tau-c result when one of the series has only one value that is not a tie.

version 18.2.1 (2023-11-27)

• Enabled seasonal and sub-seasonal aggregation, including counts and occurrences, from daily data.
• Simplified the temporary setting of the seasonal limits flag.
• Removed month and date prompts from sub-seasonal climatological prompts.
• Corrected some possible problems when climatological period extends beyond the training period.
• Prevented possible error when failing to open a new sub-seasonal X-file when a Y-file is open.
• Prevented possible error message when closing CPT from a project file with results.
• Minor improvement to some date outputs.
• Implemented the Protected attribute.
• Parameterised aggregation options.
• Added COLA-RSMAS-CESM1 to data downloads.
• Update Help pages.

version 18.1.5 (2023-11-24)

• Improved indication of Y start-at date.
• Fixed possible shortening of training period by one year when using persistence.
• Fixed possible problem with failure to identify new discrete thresholds.
• Prevented possible fatal error if data bounds are violated.
• Various improvements in the identification of missing values.
• Improved estimate of available forecasts when Y file is opened first.
• Disabled output of exceedance probabilities in batch version when forecasts have not been calculated.
• Corrected misalignment of Forecast ~ Series output.
• Fixed fatal error when using Kendall’s tau and there is no variance.
• Fixed problem forecasting using skill masks and Kendall’s tau-c.
• Fixed problem making a forecast in MLR and GCM after opening a project file with results but no forecasts.
• Fixed problems saving some sub-seasonal files.
• Fixed possible problems saving interpolated Z files.
• Fixed possible problem identifying Y-file units in the GUI version.
• Fixed problem saving regression coefficients when running GCM.
• Fixed possible problem when saving results using a subdomain of the input data.
• Fixed problem with Tools ~ Forecast ~ Ensembles window.
• Full date printed for Tools ~ Forecast ~ Series prediction intervals.
• Fixed possible fatal error when saving some output files.
• Fixed some possible fatal errors when setting date labels.
• Fixed possible problem with seasonal aggregation prompt in parameter file.
• Corrected climatological label for sub-seasonal data.
• Improved formatting of output for Forecast ~ Series.
• Improved progress meter when reading persistence data for a forecast.
• Simplified code for accessing an input file.
• Simplified code for identifying whether to set a zero-bound.
• Simplified some plotting calls.
• Simplified a date allocation.
• Simplified initialisation of error handling.
• Deleted some redundant variables.
• Removed explicit array indications.
• Improved some translations.

version 18.1.4 (2023-09-02)

• Added tab-adjustment prompt to probabilistic verification scores window.
• Widened probabilistic verification scores window.
• Fixed problem reading GCM project files with results.
• Prevented prompts when only one option is available.
• Activated Close X and Y when opening a project file with results.
• Prevented infinite loop when there is a missing date in a daily station file.

version 18.1.3 (2023-08-15)

• Switched the download-domain and regridding options that were linked to the incorrect buttons.
• Removed normal category on forecast probabilities and odds maps when the category is undefined.
• Prevented discrete setting of probability and odds intervals.
• Set default minimum value as 0 on odds and relative odds maps / graphs.
• Fixed problem with some downloads when compiled with FTN95.
• Replaced some GoTo statements.
• Simplified printing of forecast probabilities.
• Updated Help pages.

version 18.1.2 (2023-05-25)

• Restored missing vertical colour-scale on maps.
• Fixed possible failure to remember modified absolute thresholds.
• Fixed possible problem with some maps and graphs not fitting on the screen.

version 18.1.1 (2023-05-22)

• Selecting poisson or binomial regression forces the predictand to be discrete.
• Discrete predictands identifiable from field units.
• Discrete thresholds forced to be half way between whole numbers.
• Clarified prompts for absolute thresholds for discrete data.
• Probability of exceedance curves for discrete data are shown as steps.
• Added Kendall’s tau-c as a correlation option.
• Added option to allow monthly sequencing (option 548).
• Implemented a progress meter in the batch version, with an option to toggle it on and off (option 574).
• Improved progress-meter calculations.
• Permitted comments (lines starting with #) in batch version when prompting for an option and error-handling is set to stop.
• Activated Russian language option in Windows version.
• Added option to ignore negative skill when calculating the goodness index using correlation (option 5311).
• Added option to set the number of contour intervals on a map or tick marks on a y-axis.
• Enabled access to help pages from batch version (option 712).
• Enabled export in SVG format for most graphs.
• Enabled scatter diagram customisation, export and access to help pages for double cross-validated results.
• Enabled X-axis plotting for monthly data.
• Enabled viewing of goodness index results when using double cross-validation.
• Probability-rounding ignores categories with 0 probability.
• Tools ~ Forecast ~ Series shows only above- and below-normal probabilities when normal is undefined.
• Recognised leap years when days are included in dates for seasonal and monthly forecasts.
• Applied stricter cross-validation to transformation.
• Restored full-sample gamma parameters after cross-validation.
• Restored reference dates after a cancelled Options ~ Tailoring.
• Some text is printed in bold in the batch version, but can be toggled on and off (option 573).
• Some minor improvements in formatting in the batch version.
• New download configuration.
• Added option to use a custom downloads-configuration file (option 515).
• Changed prompts for pressure levels in batch version to be in pressure units rather than indices.
• Removed combined wind components from GCM-output download options in the batch version.
• Retained customised image title when cycling through different forecasts.
• Swapped upper and lower threshold maps.
• Observations that are on a category threshold are now placed into the lower category.
• Changed ‘Evaluating seasonal climate predictability’ to ‘Evaluating climate predictability’ on title page.
• Updated address to reference the Climate School.
• Changed Climatological Period menu to Climatology.
• Moved prompts for seasonal aggregation from Options ~ Climatology to Options Data Seasonal Statistics (option 549).
• Suppressed ‘Done!’ message when recalculation of climatology is nto completed
• Simplified identification of climatological period when using persistence.
• Prevented possible change in precision of printing of CCA goodness index results.
• Prevented unnecessary calculation of CCA homogeneous maps during retroactive forecasting.
• Fixed problem closing title window after cancelling a project-file-opening.
• Fixed problem reading station and index probabilities for PFV.
• Fixed some problems reading old project files with results.
• Fixed possible project file problem with missing values when there are no open files.
• Fixed occasional problem with re-standardisation of fitted values.
• Fixed possible problem calculating transformed thresholds.
• Minor changes to extrapolation of empirical distribution when threshold is beyond data limits.
• Minor changes to parameter file format.
• Fixed fatal error displaying scatter plots.
• Replaced insertion sort with quick sort algorithm.
• Various minor improvements in run-time.
• Removed regression parameters from cross-validation routines because the output is not useful.
• Renamed Options ~ Show Options to Options ~ Show Settings (option 512).
• Flushed CPT batch prompt.
• Further parameterisation of data categories.
• Parameterised call-back function values.
• Enabled character arguments in set_options.
• Streamlined code to select a training period date.
• Simplified window interfacing.
• Simplified mapping code.
• Removed obsolete project filters.
• New filename parsing routines.
• Moved some calculations to parameter definitions.
• Parameterised some standard sub-seasonal periods.
• Simplification and reorganisation of code in many of the modules.
• Changed some naming conventions.
• Deleted some unused routines.
• Declared some routines as Pure.
• Declared some routines as Elemental and simplified calls to these.
• Changed some pointers to allocatable arrays.
• Fortran 2003 text array initialisation.
• Renamed image derived-type to graphic.
• Replaced find_index and ln_gamma with intrinsic functions.
• Simplified some code for categorisation using intrinsics.
• Implemented a function to check whether optional logical arguments are present and true.
• Created colours, printing, and prompts modules from gui module.
• Created fonts module from screen module.
• Created location and grfiles modules from graphics and fields module.
• Reorganised routines in some modules, and relocated some routines to other modules.
• Parameterised batch menu indents.
• Changed some routine argument intents.
• Deleted some redundant variables.
• Overloaded some printing and prompting routines.
• Replaced some Intrinsic calls with Aint and Anint.
• Implemented some additional translations.
• Improved readability of declarations sections.
• Improved readability of code.
• Modified error-handling code to avoid overwrite of error indicator.
• Applied Doxygen-type comments to public routines in most modules.
• Update to LAPACK 3.11.0.
• Updated some Help pages and redesigned all pages.

version 17.8.8 (2024-11-21)

• Corrected occasional problem identifying nearest gridpoint.
• Fixed problem with undefined variable in the batch version when exiting immediately after start-up.

version 17.8.7 (2024-10-07)

• Fixed problem reading dates with decimals for seconds.
• Corrected output of stations and indices when some are unused because of missing values.

version 17.8.6 (2023-07-08)

• Fixed possible omission of one year downloading data from two datasets.
• Implemented some intrinsic functions in parameter definitions for FTN95.

version 17.8.5 (2023-05-25)

• Fixed possible fatal error running logistic regression.
• Corrected possible sub-seasonal start-at date-label errors.
• Implemented workarounds for possible FTN95 allocate-on-assignment bug.
• Fixed problems changing the climatological period after results are calculated.
• Enabled Options ~ Climatological Period after opening a project file with results.
• Prevented possible fatal error when opening multiple results windows.
• Avoided possible fatal error if axis tick-mark intervals are set to zero.
• Fixed possible exclusion of last date label on x-axis for sub-seasonal data.
• Forced incremented or decremented date to be within the season limits if it is initially outside them.
• Minor improvement in efficiency of calculating prediction-error variance.
• Fixed some formatting issues for author list.

version 17.8.4 (2023-05-09)

• Increased maximum length of directory names.
• Corrected standardised predictions when there is more than one predictand.
• Corrected retroactive period date message when there are missing dates.
• Corrected date of data outside of permitted bounds.
• Simplified identification of retroactive and training period dates.
• Simplified identification of double cross-validation date, and improved message.
• Added units to X-axis label on regression plots.
• Corrected regression labels when multi-fields are used.
• Maintained transformed axes when replotting a regression graph.
• Fixed possible problem viewing goodness index results when using MLR or GCM in retroactive mode.
• Fixed fatal error when bernoulli deviance cannot be calculated.
• Corrected possible incorrect season-selection indicator in batch version.
• Corrected possible date inaccuracies in GrADS station output files when using seasonally-sequenced data.
• Corrected possible minor inaccuracies when adding persistence components including Februaries.
• Implemented workaround for FTN95 memory leak when using a transformation.
• Tools ~ Climatological Maps ~ Forecasts greyed after modifying number of forecasts and/or start-at date.
• Reset climatological period to 0 after closing a project.
• Disabled Options ~ Climatological Period after closing a Y file.
• Fixed some incorrect title-page grey-menu states for GUI version.
• Fixed some possible problems with date prompts.
• Fixed some possible problems with project files.
• Prevented possible double project-file extension.
• Disabled output of coefficient of variation when zero-bound is off.
• Corrected output of standardisation setting in parameter file.
• Avoided possible problem when opening a forecast file.
• Prevented output of seasonal parameters when season is implied from the model T date.
• Fixed possible problem with forecasting after running double cross-validation.
• Restored number of forecasts and the forecast file after a double cross-validation.
• Simplified missing-value routine for forecasts.
• Assumed start and end days of month when calculating date differences in days and the days are undefined.
• Resolved a mixed-precision calculation.
• Fixed some handle kinds for 64-bit version.
• Fixed a latent problem with new lines in output files.
• Added flush after output of hidden CPT prompt.

version 17.8.3 (2023-03-15)

• Minor improvement to batch output of ranked hits.
• Fixed problem saving parameter files using File ~ Save As.
• Fixed problem with Y dates prompt.
• Fixed problem with batch version integer and real prompts if first character of response is ‘/’.
• Fixed possible problems initializing and selecting scores for skill maps
• Corrected some possible confusions between cross-validated and double cross-validated image references.
• Corrected option 133 prompt at start-up.
• Avoided possible problem with transformed forecasts resulting from FTN95 bug.

version 17.8.2 (2023-03-03)

• Fixed possible undefined date when unable to read an input file.
• Fixed problems with grey menus when using MLR.
• Supplied missing initial contour limits on EOF and CCA maps.
• Modified interval calculations for when the number of intervals is fixed.
• Initialised unused contours as zeroes.
• Improved season representation.
• Restored goodness index as option 531.
• Avoided potential problem with multiple regression in Windows version.
• Changed some argument intents.

version 17.8.1 (2023-02-27)

• Updated Meteo-France downloads to version 8 (model option 112).
• Updated OISST downloads to version 2.1.
• Updated GPCC downloads to version 2020.
• Added JMA CPS2 download (model ID 151).
• Removed CFS2 (NMME) download (model ID 11; replaced by model ID 13).
• Replaced CanCM4i download (model ID 33) with CanCM4i-IC3 (model ID 37).
• Replaced ECMWF-SEAS5 download (model ID 101) with ECMWF-SEAS51 (model ID 102).
• Removed GFDL-CM2p1-aer04 download (model ID 54).
• Fixed problem with seasonal aggregation of CHIRTS downloads.
• Fixed problem downloading CanSIPS-IC3 u- and v-components.
• Enabled u- and v-wind component downloads for models with no explicit pressure levels.
• Permitted monthly data to be constant fields when part of a seasonal aggregation.
• Fixed possible fatal error opening some files.
• Fixed some possible problems using monthly Y files in the Windows version.
• Fixed possible problem changing target period.
• Fixed possible fatal error saving project file with results.
• Fixed possible fatal error saving probabilities.
• Prevented possible double compression of binomial denominators.

version 17.7.9 (2023-02-08)

• Fixed accelerator keys.
• Improved error messaging given missing cpt tags in input files.
• Retained Y-axis scaling when replotting bar charts.
• Improved estimation of X-axis tick mark spacing.
• Removed forecast date prompt from Tools ~ Forecast ~ Ensembles.
• Fixed possible undefined output when converting units.
• Fixed possible problem creating some graphics windows.
• Fixed a problem reading old PFV project files with results.
• Fixed some problems running PFV with multiple seasons.
• Fixed problem saving a project file with no selected analysis.
• Fixed problems with persistence.
• Fixed possible problem decreasing dates.
• Corrected a Help page link.

version 17.7.8 (2022-12-23)

• Enabled inaccessible screen plots (option 441) and regression (option 471) menu items in batch version.
• Disabled access to Y-modes when running PCR.
• Fixed problem with performance measures window.
• Prevented fatal error when selecting a location on verification skill maps.
• Prevented project file and parameter files from overwriting each other.
• Fixed failure to show some menu items in foreign languages.
• Fixed occasional problem with accelerator keys.
• Forced GLM models to model the average when convergence is not reached.
• Fixed possible fatal error calculating poisson deviance.
• Corrected poisson deviance.
• Corrected missing-value indicator on options and settings listing.
• Fixed possible problem reading project files with results.
• Fixed fatal error if an input file cannot be read from Actions (i.e., it was opened from a project file).
• Implemented work-around for FTN95 problem with intrinsic Sum when calculating MSE.
• Implemented work-around for FTN95 problem arrays in derived type arrays.

version 17.7.7 (2022-11-24)

• Fixed possible problem with standardization option changing unexpectedly.
• Fixed possible problems with accelerator keys in labels containing accents.
• Fixed problem calculating gamma distribution parameters when only one value is non-zero.
• Fixed possible problem with absolute categories.
• Changed accelerator-key identifiers to letters.

version 17.7.6 (2022-08-05)

• Fixed problem with categorization when using absolute or reference-date thresholds with PFV.
• Fixed problem reading station and index probabilities for PFV.
• Fixed possible omission of first column of data in CSV files.
• Improved probability binning.
• Deleted double call to convert to gaussian in PCR and GCM cross-validation.
• Fixed occasional problem with inverse link.
• Fixed occasional problem with restandardization of fitted values
• Fixed possible leap-year inaccuracy in binomial forecasts.
• Fixed some occasional problems reading project files.
• Fixed possible problem printing settings in batch version.
• Swapped axis-limits when they are entered the wrong way round.
• Improved error trapping when calculating forecasts.
• Enabled entry of blank line as a response to a file-name prompt in the batch version.
• Parameterized data categories.
• Updated some Help pages.

version 17.7.5 (2022-05-19)

• Enabled output of standardized maps in batch version (options 466, 467, and 468).
• Recognised ‘pr’ as a precipitation field identifier, and ‘tref’ and ‘tmp’ as temperature identifiers.
• Improved identification of precipitation and temperature.
• Added conversions for mm per period.
• Corrected some conversions from cm/day.
• Fixed memory problem with double cross-validation in some versions.
• Corrected application of units conversions during double cross-validation.
• Fixed problem accessing project results when opening project from CPT title window.
• Fixed possible problem identifying units.
• Fixed possible fatal error when switching on skill mask after results have been calculated.
• Fixed problem displaying some climatological maps.
• Fixed some problems with standardized climatological maps.
• Fixed possible problem with download configuration.
• Changed seasonal length calculation to accept parsed period.
• Edited some Help pages.

version 17.7.4 (2021-05-11)

• Restored missing Tools ~ Validation ~ Retroactive and Double Cross-Validation menu items in GUI version.
• Renamed Tools ~ Modes to Tools ~ Models.
• Moved Tools ~ Regression to Tools ~ Models.
• Fixed problem with categorization given more than one Y variable.
• Corrected display of regression output for PCR.
• Removed GEM-NEMO model from data download options (model ID 35).
• Added an alternative CFS2 (NMME) download (model ID 13).
• Minor edits in output comments.
• Fixed occasional problem reading results in project files.
• Fixed fatal error showing scree plots.
• Removed spurious error when aborting during missing-value replacement.
• New function for mssing value replacement error checking.
• Updated some Help pages.

version 17.7.3 (2021-05-05)

• Fixed problem with some ganged radio buttons in the windows version.

version 17.7.2 (2021-05-04)

• Recognised cpt:units=counts (monthly data will be summed).
• Fixed occasional problem with undefined variable when saving parameter file.
• Resolved some issues saving parameter file when a project file is open.
• Fixed possible problem with seasonal aggregation prompt.

version 17.7.1 (2021-04-16)

• Implemented option to run double cross-validation (generates hindcasts of probabilistic predictions; option 314).
• Added option to use double cross-validated error variance as prediction error variance.
• Added option to save additional retroactive results.
• Added option to save gamma distribution parameters.
• Enabled output of regression results when running GCM in batch mode, and disabled some invalid file options in both versions.
• Missing persistence data for forecasts are replaced before calculating seasonal total of persistence season.
• Updated NMME dataset to CanSIPS-IC3.
• Implemented check for inconsistent sub-seasons in the X and forecast files.
• Excluded values are now excluded rather than being replaced by missing values.
• Minor changes to identification of which variables to omit based on number of missing values.
• Permitted all values in persistence season to be equal.
• Fixed some occasional problems replacing missing values.
• Mean and variance of predictors are now calculated when running MLR.
• Corrected inaccuracy in calculating gamma parameters using method of moments.
• Corrected possible failure to update masking.
• Output blank line in batch version of win_prompt to distinguish from an invalid entry.
• Fixed some menu greying issues in batch version.
• Fixed possible problem returning incorrect ganged radio button index.
• Fixed occasional truncation of training period when using monthly Y data.
• Fixed switching off beginner and expert mode in validation results.
• Fixed some issues with undefined memory when there are missing values.
• Prevented possible fatal error displaying options when a GLM is selected.
• Prevented possible fatal error when using reference years.
• Prevented possible loss of season limits information when opening a forecast file.
• Fixed occasional problem with retroactive contingency tables when there are missing values.
• Fixed some occasional problems reading project files.
• Fixed incorrect dates in some verification results files.
• Changed output unit numbers for retroactive results files.
• Added missing dates to weather roulette ouput files.
• Modified some confusing descriptions of persisted and predicted components of forecasts.
• Fixed problem when requesting below-normal at the batch version category prompt.
• Allowed for multiple additional cpt tags.
• Minor improvements in checks for invalid output file numbers in batch version.
• Option back-ups and checks now work with ganged lists.
• Time setting option is restored after cancel.
• Improved efficiency of categorization.
• Modified some output routines.
• Implemented routine for a radio button.
• Simplified handling of prompts for submenus.
• Reorganized options prompts.
• Reorganized some modules and created new opts_prompts module.
• Fixed problem with possibly uninitalized variable.
• Adjustments for 64-bit compatibility.
• Renamed some variables.
• Fixed broken link to a Help page.
• Updated Help pages.

version 17.6.1 (2021-01-04)

• Implemented option to exclude specific dates from the training period (for use in double cross-validation, for example; option 547).
• Implemented option to save a parameters file (option 145).
• Implemented option to select numbers of modes using the Mutual Information Criterion (option 531, 7).
• Implemented check for consistency of X and Y variables and a prompt to invert the goodness index orientation if appropriate.
• Activated options to export X, Y and Z values maps, and to access respective Help pages.
• Updated CRU dataset to version 4.05.
• Updated Copernicus datasets to DWD GCFS2p1 and CMCC SPSv3p5.
• Enabled beginner mode in batch version.
• Enabled reading of sub-seasonal station and index data.
• Goodness index is calculated using transformed data when there is no optimization in CCA.
• Recognised ‘Celsius’ for units conversion.
• Activated some inaccessible Tools items in the batch version.
• Deactivated some menu items in the batch version that were greyed.
• Activated Tools ~ Forecasts when restoring results from project file.
• Simplified and increased maximum number of modes when running in beginner mode.
• Modified printing of season limits in options settings.
• Corrected start-at dates for sub-seasonal data.
• Enabled opening of forecast file when Y file is unopened.
• Prevented fatal error when opening a monthly X file – error message is issued.
• Changes to p-value and confidence interval calculation check boxes can be cancelled.
• Some options that were not recording a change in project settings are now recognised.
• Fixed problems with sub-seasonal date prompt in batch version.
• Fixed problems with eigenvalues output-file format.
• Fixed possible problem when climatological period is shorter than retroactive period.
• Fixed possible problem calculating season length for binomial regression when there are seasonal limits.
• Fixed problem when climatological period extends beyond training period, and persistence is used.
• Fixed problem running binomial regression from GCM.
• Fixed possible overflow when calculating deviance for binomial regression.
• Fixed possible overflow when calculating ignorance score.
• Prevented fatal error when there are too few events in a binomial regression.
• Fixed problem displaying program options when using binomial regression.
• Fixed problem with advanced CCA Options possibly not working.
• Fixed problems showing regression results with GCM.
• Fixed problem restoring results for binomial regression from a project file.
• Fixed occasional problem displaying ROC probabilistic skill maps.
• Fixed occasional problem with corrupted drop down menus.
• Changed category prompt on verification skill maps to drop-down list.
• Supplied missing hidden prompt for yes-no responses.
• Disabled CCA and Modes Options when results are calculated rather than issuing warning message.
• Redesigned menu construction.
• Implemented menu activation counters.
• Reordered some menu items.
• Disabled batch option 213 (superceded by 231).
• Removed batch options 4 – 6 from menu, although they can still be activated (superceded by 221 – 223).
• Fixed problem with greyed View ~ Verification menu item in beginners version.
• Simplified code to read input files from a project file.
• Created new module for updating cpt settings, and reorganised existing modules.
• Created routine to check for units conversion.
• Created function to determine whether a data structure implies a spatial component.
• Conversion to lower-case to simplify identification of variables.
• Simplified code to calculate maximum number of modes.
• Minor simplification of expert-level switch.
• Changed ieof_to_istd and istd_to_ieof to functions.
• Deleted near-redundant options_eof.
• Renamed psave to write_project.
• Renamed some variables.
• Adjusted compilation order.
• Deleted some unused batch version code.
• Edits to the output module.
• Implemented some additional, and corrected some, translations.
• Update to LAPACK 3.10.0.
• Updated some Help pages.

version 17.5.2 (2021-06-09)

• Some missing data situations identified in daily input files.
• Implemented work-around for ClearWin+ problem with drop-down lists.
• Fixed possible problem with filename prompt in batch version.
• Fixed possible problem running Data ~ Update when there is a gap.
• Fixed possible problem running Data ~ Update in batch version.
• Fixed problem when Z file contains daily data for only one season.
• Fixed possible problems running GCM.
• Fixed possible problem with undefined forecast probabilities.
• Modified handling of old output file IDs for easier reading.
• Simplified PFV check.
• Applied square brackets for array initialisations.
• Deleted some redundant Use declarations.

version 17.5.1 (2021-05-21)

• Added options to set and apply a dry-mask and or a skill mask (options 5372 and 5371, respectively, or 537 for both).
• Set a default climatological period of 1991 – 2020.
• Goodness index is shown in File ~ Output Results ~ View when running MLR and GCM.
• Replaced GloSea5 (model 121) with GloSea6 (122) data download.
• Removed NASA-GMAO-062012 (model 71) from data download.
• Deleted some duplicate CanGEM-NEMO records.
• Fixed possible failure to open forecast probabilistic map.
• Avoided possible printing of wrong option in options list.
• Implemented additional translations.
• Implemented a hidden CPT prompt in the batch version.
• Replaced filename prompt with prompt_cvalue.
• Simplified creation of missing values menu items in batch version.
• Moved moments subroutine from arrays module to distribs.
• Minor modification to memory management.
• Tab defined as a parameter.
• Deleted some resolved bug indicators.
• Updated Help pages.

version 17.4.5 (2021-05-04)

• Forced goodness index output file to be formatted text.
• Removed duplicated model download options.
• Fixed possible fatal error when selecting from a list in batch version.

version 17.4.4 (2021-04-08)

• Fixed possible problem with identifying output precision for latitudes and longitudes.

version 17.4.3 (2021-04-01)

• Fixed possible problem running retroactive option with empirical transformation.
• Fixed possible problems saving retroactive results in batch version.
• Simplified passing of lopt.
• Implemented additional translations.

version 17.4.2 (2021-03-25)

• Fixed problem running retroactive option with no transformation.

version 17.4.1 (2021-03-13)

• Added options to save persisted and predicted components of forecasts and corresponding observations (files 5111, 5112, 103, and 104).
• Enabled domain selection in batch version data downloads (option 821).
• Added prompt for regridding in data downloads (option 822 in the batch version).
• Added accelerator key for “Select sub-domain”.
• Enabled prediction intervals on retroactive performance measures graph.
• Hindcasts plotted against year of first month of persistence.
• Fixed problem plotting binomial regression.
• Fixed problem reading sub-seasonal data.
• Fixed occasional problem with greyed Edit ~ Data Domain menu option.
• Fixed possible problem downloading data in some batch versions.
• Fixed possible problem with greyed Tools ~ Forecast.
• Fixed some problems with persistence in retroactive forecasts.
• Fixed memory problem with rerunning retroactive option.
• Fixed possible problem running retroactive option when not calculating fitted error variance.
• Fixed inaccuracy in calculating retroactive error variance for MLR and GCM.
• Odds shown with additional precision.
• Prevented some possible fatal errors when stations with too many missing values are omitted in the batch version.
• Improved handling of gamma distribution parameters.
• Redesigned handling of persistence component.
• Redesigned setting seasonal labels.
• Adjusted handling of memory of used-dates arrays.
• Assigned possible missing first date, and simplified setting.
• Minor modification to project file prompt.
• Minor edits to some error and warning messages.
• Parameterized transformation options.
• Parameterized date output formats.
• Extended list of encoded URL characters.
• Fixed truncation of cg_uvars_l.
• Implemented additional translations.

version 17.3.3 (2021-03-02)

• Implemented warning message for windows batch version when download file is not defined with full path.
• Improved readability of file opening code.

version 17.3.2 (2021-02-21)

• Added CHIRPS NMME and CHIRTS datasets to download options.
• Added GEM-NEMO model to data download options (model ID 35).
• Replaced GFDL_FLOR models with GFDL-SPEAR (model ID 55).
• Disabled greying of File ~ Save (option 143) in batch version.
• Fixed problem plotting binomial regression.
• Fixed problem with theoretical climatological probabilities when using a standardization.
• Initialized most machine constants at compile time using intrinsics in declaration statements.
• Implemented additional translations.

version 17.3.1 (2020-12-10)

• Added options to plot X, Y and Z values standardized according to the EOF calculation option.
• Supplied missing functions for extra_prompt calls.
• Fixed problem restoring CCA results from project files from title window.
• Fixed problem forecasting after restoring results from project files.
• Fixed problem with EOF settings in project files.
• Fixed problem with persistence component for seasonally averaged data.
• Fixed occasional problem setting appropriate seasonal averaging or totals.
• Changed ForAll to Do Concurrent.
• Updated and renamed some Help pages.

version 17.2.2 (2020-09-10)

• Output theoretical climatological probabilities and odds whenever gamma distribution fit is used.
• Added spatial domain to options listing.
• Added text orientation option for box titles.
• Parameterized threshold options.
• Minor modifications to options listing format.
• Fixed some possible problems reading labels file in non_english languages.
• Improved handling and output of Cyrillic characters.
• Prevented possible error when entering 0 at language prompt in batch version.
• Implemented additional translations.
• Changed compilation order of data_version.

version 17.2.1 (2020-09-02)

• Implemented additional link functions.
• Added option to view program settings.
• Added option to save fitted values (file 205).
• Fixed calculation of GLM error-variance.
• Enabled selection of retroactive error-variance before running.
• Changed ordering of error-variance options.
• Link functions only applied if a skill correction is used in GCM.
• Prevented fatal error when opening an invalid file while using ignore errors in batch mode.
• Prevented possible fatal error when changing to OLS regression if a non-identity link is selected.
• Fixed possible problems arising after canceled selection of SPI standardization.
• Fixed possible problems opening project files when input files no longer exist.
• Added project file version to error output.
• Version 14 and 15 project files are not supported.
• Improved messaging when restandardizing.
• Fitted values always calculated.
• Hindcast error-variance always calculated.
• Reorganised calculation of predictions.
• Implemented additional translations.
• Updated some Help pages.

version 17.1.4 (2020-08-13)

• Added some additional identifiers for ‘temperature’.
• Fixed problem running GCM with multi-models for Y station data.
• Implemented work around for FTN95 failure to output F0.0.
• Fixed automatic download for batch version on Windows.
• Fixed occasional fatal error message when labels cannot be read.
• Avoided possible error when using merge or update from the title window.
• Implemented additional translations.

version 17.1.3 (2020-08-10)

• Corrected GCM forecast error variance for number of models.
• Fixed possible problem forecasting with multi-model GCM.
• Added greying to Options ~ Zero-bound and Options ~ Transofrm Y if GLMs are used.
• Renamed some grey menu items, and implemented routines to set some.
• Updated some Help pages.

version 17.1.2 (2020-08-09)

• Activated link function options.
• Added option to adjust the tab space on Tools ~ Validation ~ Performance measures.
• Project file directory is remembered and default is used on start-up.
• Project filename does is shown in windows title when loading from title screen, and is retained when view is changed.
• Simplified setting of some backups when opening a project file.
• Fixed problem using the open file dialogue box as windows explorer.
• Activated binomial data bounds check.
• Fixed some problems using binomial regression.
• Fixed possible problem when there are missing years.
• Backed up regression and link options when changing to CCA.
• Implemented some additional translations.
• Updated some Help pages.

version 17.1.1 (2020-08-02)

• Added options for poisson, gamma, and binomial generalized linear models.
• Added Akaike, Bayesian and Hannan-Quinn information criteria as goodness index options.
• Added option to correct combined model for skill.
• Improved estimates of prediction error variance for GCM options.
• Added climatological mean and standard deviation to Tools ~ Forecast ~ Series output.
• Added option to save transformed Y data (file 121).
• Added options to change only X or Y missing value settings in batch version.
• Added option (140) to display input file information in batch version.
• Output goodness index values in full precision.
• Implemented dynamic setting of goodness index output precision.
• Precision for latitude-longitude output is set automatically.
• Y-variable names added to regression equations.
• X- and Y-variable names and units added to axes on regression plots.
• Imposed limits on climatological period when results have been calculated.
• Zero-bound not applied until after calculation of probabilities.
• Fixed occasional inconsistencies when using persistence with transformation and standardization.
• Model recalibration and combination options now saved in project file.
• Combined model no longer saved in output file (the hindcast/forecast is the combined model).
• Dropped support for version 14 project files.
• Made some variables in cpt.ini redundant.
• Prevented fatal error if console size is negative.
• Simplified project file code.
• Reduced memory requirements for PCR.
• Eliminated some redundant calculations for PCR.
• Created a subroutine for principal components.
• Added a module for regression and one for prediction.
• Simplified construction of regression character string.
• Modularized code for forecasting and retroactive forecasting.
• Generalized routine for zero-bound checking to allow for specified lower and upper bounds.
• Created internal function for data bounds checking.
• Added routine to convert PC to regular regression coefficients.
• Simplified calculation of prediction error variance.
• Simplified calls to prediction routines.
• Renamed some modules and routines for consistency with menu names.
• Parameterized error-variance, standardization and EOF options, and data structure identifiers.
• Removed spurious warnings on some batch version prompts.
• Removed duplicate Target Season prompt in batch version.
• Improved start-at date for Z files when there is a persistence component.
• Implemented additional translations.
• Converted cpt_lapack module to free format.
• Supplied missing intrinsic declarations.
• Changed order of some function and subroutine arguments and declarations.
• Changed some module dependencies.
• Corrected some optional argument calls.
• Increased indent.
• Improved some program comments.
• Update to LAPACK 3.9.0.
• Updated some Help pages.

version 16.5.9 (2020-12-10)

• Fixed occasional problem setting appropriate seasonal averaging or totals.
• Corrected possible occasional leap-year inaccuracy for persistence component.
• Fixed problem displaying results for multiple-lagged fields.
• Resolved duplicate routine name conflict.

version 16.5.8 (2020-08-02)

• Improved initial estimate of appropriate climatological period when using persistence.

version 16.5.7 (2020-07-26)

• Enabled unit conversions for multiple fields with differing units.
• Fixed problem saving multimodel interpolated X data.
• Fixed possible problem saving interpolated updated X data.
• Modified GCM cross-validation to avoid reference to uninitalised data.

version 16.5.6 (2020-07-08)

• Fixed problem plotting probabilistic skill scores.
• Updated some Help pages.

version 16.5.5 (2020-06-11)

• Fixed problems with some GCM data downloads.
• Updated GloSea downloads to version 15.
• Improved default length of training period when using persistence.
• Improved formatting of Tools ~ Forecast ~ Series output.
• Fixed occasional offset of X-axis labels.
• Fixed problem restoring prediction-error variance as option in project files without results.
• Fixed occasional problems saving project file with results.
• Fixed problem restoring GCM results for station Y data.
• Fixed possible problem with default output precision in batch version.
• Greyed inactive File ~ Save after reset.
• Forced relative odds to be unspecified when odds are unspecified.
• Corrected occasional error calculating gamma parameters.
• Modified some error messages.
• Deleted some redundant Use variables.

version 16.5.4 (2020-04-29)

• Suppressed error message when end download date is in the future.
• Fixed incorrect start-at for X and Z files when there is a persistence component and Y file is opened first.
• Fixed occasional problem reading persistence data for forecasts.
• Corrected occasional incorrect number of forecasts when persistence data are limiting.
• Removed duplicate refresh of number of forecasts.
• Parameterized sizes of default trajectory and filename strings.
• Parameterized file identifiers.
• Moved graphics file definition and identifier to graphics module.

version 16.5.3 (2020-04-24)

• Fixed problem reading non-gridded files with unequal date lengths.
• Prevented fatal errors when number of forecasts is 0.
• Implemented limits checks on forecast start-at date when persistence data are limiting.
• Corrected number of forecasts limits when persistence data are limiting.

version 16.5.2 (2020-03-31)

• Fixed some problems with grey menu items.
• Deleted redundant set_view function.

version 16.5.1 (2020-03-18)

• Added options to shade the land and/or sea grey.
• Added option to set the contour limits on Tools ~ Climatological Maps ~ Correlations.
• Enabled output of climatological standard deviations and coefficients of variation.
• Updated GPCC downloads to version 2018.
• Added Copernicus C3S models to download options.
• Replaced CMC1-CanCM3 and CMC2-CanCM4 downloads with CanCM4i and CanSIPSv2.
• Replaced NASA GMAO downloads with NASA GEOSS2S.
• Removed ECHAM4.5 and NCAR-CESM1 downloads (no longer updated).
• Corrected some CFS2 download issues.
• Simplified download file and module.
• Inhibited some menu items when results have been calculated.
• Prevented crash when CPT is unable to initialise a new user.
• Updated some Help pages.

version 16.4.1 (2020-02-17)

• Added options to plot climatological standard deviations and coefficients of variation.
• Reversed default colour ordering for climatolgoical averages and thresholds maps.
• Updated some Help pages.

version 16.3.4 (2020-02-14)

• Fixed some problems with skill-weighted averaging in GCM option.
• Reduced memory requirements for GCM.
• Changed “Skill-weighted average” GCM option to “Multi-model average”.

version 16.3.3 (2020-01-30)

• Removed leading tab mark before latitudes in gridded output files.
• Changed to monochrome colour bar for error scores.
• Fixed occasional problem showing labelbar labels.
• Fixed failure to identify a gap in the input data.
• Fixed occasional problem with data download URLs.
• Modified reference to window_update routine because of changes in FTN95 v8.60.

version 16.3.2 (2020-01-08)

• Prevented test output when using Merge of Update from the title window.
• Fixed occasional problem with backing up seasons information using Merge or Update.
• Fixed possible problem with season indications in multi-field output files.

version 16.3.1 (2019-12-18)

• Added option to map % variance, variance ratio, RMSE and MAE.
• Implemented option to reset contours on skill maps.
• Improved and simplified construction of colourbars.
• Fixed some problems reading results in project files.
• Fixed problem opening new X file when persistence component is on.

version 16.2.4 (2019-11-25)

• Fixed problem plotting tendency diagrams.
• Fixed some problems reading results in project files for PFV.

version 16.2.3 (2019-11-24)

• Fixed occasional problem reading unreferenced files.

version 16.2.2 (2019-11-22)

• Zero-bound option is turned on automatically if cpt:units is ‘count’ or ‘counts’.
• Prevented unnecessary calculation of seasonal values when season length is 1.
• Restored previous settings after cancelled file opening.
• Corrected climatological curve on probability of exceedance plots when using persistence component.
• Improved implementation of flywheel limits on number of forecasts.
• Activated flywheel limits on training period length and number of forecasts when project file is opened from the title window.
• Added indication of persistence component on dates for multiple forecasts.
• Fixed occasional probem showing inappropriate season for forecast file start-at dates.

version 16.2.1 (2019-11-14)

• Added option to show probabilities of exceedance as probabilities of non-exceedance.
• Added option to print output data at a specified precision.
• Added NASA GEOSS2S to download options.
• Simplified code for output of regression coefficients.
• Fixed problems with monthly data in project files.
• Fixed some problems with probability of exceedance.
• Fixed some problems with persistence component.
• Removed some unnecessary values from project files.
• Prevented automatic saving of project file after File ~ New in batch version.
• Moved some variables from settings to pcs module.
• Updated some Help pages.

version 16.1.8 (2019-11-14)

• Corrected probability of exceedance graphs after resetting x-axis limits.
• Fixed alignment of x-axis numerical labels.
• Fixed problems with monthly data in project files.
• Fixed some problems with probability of exceedance.
• Fixed some problems with persistence component.

version 16.1.7 (2019-11-12)

• Fixed occasional problem with incorrect CCA forecasts.
• Fixed problems with persistence component.
• Fixed problem with version 9 forecast files containing a single year.
• Fixed missing error message when there is a problem opening a project file.
• Fixed some problems restoring results in a project file.
• Fixed problems updating number of variables in the forecast file.
• Improved implementation of flywheel limits on training-period length.
• Fixed occasional problems with training period length.
• Fixed problem saving probabilistic verification scores in batch version.
• Restored missing retroactive validation option.

version 16.1.6 (2019-11-05)

• Enabled reading of multifield sub-seasonal files.
• Enabled reading of gridded files with only one longitude.
• Fixed occasional problem reading sub-seasonal data in station and index files.
• Fixed problem with “Apply to all” when selecting domain.

version 16.1.5 (2019-09-27)

• Fixed problem with map coordinate labels.
• Fixed some problems showing subseasonal start-at dates.

version 16.1.4 (2019-08-29)

• Improved default Start-at dates when Y-file is opened first.

version 16.1.3 (2019-08-16)

• Fixed problem restoring domain after cancelled opening of file.
• Fixed problems reading results in project files.
• Corrected prompt for Forecast Input File in batch version.
• Simplified initialization of principal components.

version 16.1.2 (2019-08–7)

• Fixed problem showing incorrect default start-at date for separate forecast file.
• Fixed possible problems reading old input data files.
• Fixed possible problems using separate forecast input files.
• Simplified some outputs by using 0 format edit descriptors.

version 16.1.1 (2019-07-30)

• Enabled reading of sub-seasonal, including bi-weekly, data.
• Implemented seasonal limits for sub-seasonal data.
• Missing values are now replaced before calculation of seasonal data.
• Moved Start-at date prompt to Edit menu.
• Added length of climatological period to the main window.
• Added option to switch off printing of menus in the batch version.
• Implemented option to print sub-menus in batch version.
• Added option to average an ensemble before fitting model.
• Reduced memory requirements when calculating seasonal data from monthly.
• Enabled ensemble sorting for non-gridded data.
• Added minor tick marks to some graphics.
• Improved precision of numerical axis labels.
• Dates on x-axis realigned slightly to avoid starting at y-axis.
• Enabled some file format options from the title window.
• Enabled project file saving from the title window.
• Activated season prompt for GCM with monthly validation data.
• Enabled Data ~ Merge and Data ~ Update after cancelled opening of an input file.
• Enabled Data ~ Merge and Data ~ Update for non-yearly-sequenced data.
• Enabled Data ~ Update when the update file has only one case.
• Seasonal totals calculated if units are mm/month.
• Updated CRU downloads to version 4.01.
• Updated ERSST downloads to version 5.
• A default zero-bound option is now set for multi-field Y input files.
• Implemented file modification date checks for gfortran.
• Increased maximum length of file and directory names.
• Increased maximum length of station names.
• Minor modifications to format of some date outputs, including indication of persistence component in brackets.
• Changed default station markers to circles.
• Implemented option to use the Catholic Gregorian calendar (starting in October 1582 rather than September 1752).
• Allowed for longer period strings.
• Fixed occasional problem with batch menus.
• Fixed occasional problem with batch project files.
• Enabled use of Silverfrost callback ‘SET’ from accelerator keys.
• Simplified modules for examining the structure of input files.
• Implemented a function to check whether a real value is approximately equal to another.
• Combined perform_cca, perform_pcr, and perform_gcm routines.
• Simplified climate_per derived types.
• Created ensembles module.
• Added menus module.
• Ended support for version 13 project files.
• Update to LAPACK 3.8.0.
• Renamed some variables.

version 15.7.11 (2019-07-09)

• Fixed possible problems selecting confidence intervals, p-values, relative odds, and extended cliatological periods.
• Fixed problem saving temporal scores when there are omitted cases.
• Fixed occasional problem identifying incorrect season length.
• Improved batch output of weather roulette results.
• Fixed dates in weather roulette output files.
• Fixed initialiation problem with weather roulette.
• Fixed output file initialiation problem when no name is entered.
• Fixed failure to prompt for output file if verification score is unchanged.
• Fixed problem with cpt:units tag in output files.
• Fixed problems saving averages and thresholds for seasonally sequenced data.
• Fixed occasional problem showing wrong season length.
• Corrected units when seasonal totals are calculated.

version 15.7.10 (2019-04-23)

• Enabled target-season prompt when using GCM.
• Improved error messages for missing values.

version 15.7.9 (2018-10-13)

• Fixed occasional problem running forecasts when new forecast file is opened.

version 15.7.8 (2018-07-30)

• Forced program termination after invalid entry of filename when error handling is set to stop.

version 15.7.7 (2018-07-16)

• Fixed problem with file merging in batch version.
• Fixed problem with File~Update.

version 15.7.6 (2018-05-04)

• Prevented crash at start-up on some machines when trying to identify Windows version.
• Changed mode prompts to pull-down lists to avoid FTN95 bug with spin-wheels.

version 15.7.5 (2018-04-18)

• Fixed problem downloading non-NMME version of CFS2 SST data.
• Fixed additional problem displaying GrADS station data.

version 15.7.4 (2018-03-30)

• Fixed occasional problem displaying some GrADS maps.
• Fixed problem displaying GrADS station data.

version 15.7.3 (2018-02-01)

• Enabled saving of probabilistic skill maps in batch version.
• Corrected score ranges for Brier and Brier skill score maps.
• Fixed problem displaying probabilistic skill maps given index data.
• Enabled scree plots when X file contains index data.
• Fixed occasional failure of forecast file start and end dates to update.
• Improved handling of invalid initial training periods for retroactive analysis in batch version.
• Changed most forecast and field prompts to pull-down lists to avoid FTN95 bug with spin-wheels.
• Corrected some Use declarations.
• Corrected some incorrect Integer kinds.

version 15.7.2 (2017-12-29)

• Fixed problem with multiple forecasts when lead-time by year is greater than zero.
• Replaced invalid X forecast time scores output file with interpolated Z data output file for GCM.
• Fixed problem saving GCM regression coefficients.
• Fixed problems saving GCM option project files with results.
• Corrected some KIND definitions for a forthcoming 64-bit version.

version 15.7.1 (2017-12-19)

• Added NASA and GFDL-FLOR-A06 NMME models, and CFS2 as NMME.
• Indicated NMME models.

version 15.6.4 (2017-12-10)

• Fixed problem with dates in weather roulette output files.
• Fixed occasional problem plotting cumulative profits and effective interest rate.
• Fixed problem with interpolation option.

version 15.6.3 (2017-11-29)

• Improved text size scaling.
• Modified line thickness on exceedance probability plots.
• Fixed problem changing graphics title.
• Corrected Makefile reference to downloads file.

version 15.6.2 (2017-11-18)

• Added CHIRPS v2 to download options.
• Added NCAR CESM1 to download options.
• Removed redundant pressure-level grid selection when only one pressure level is available.
• Updated salflibc.dll from FTN95 v 8.20.

version 15.6.1 (2017-11-10)

• Modified download module to enable reading of customised download configuration files.
• Added OISST2 to SST download options.
• Implemented automatic download using BITSadmin for precompiled Windows batch version.
• Added option to scale CPT window text for improved window formatting.
• Enabled reading of files with cpt:col=’lon’ and cpt:row=’lat’ tags.
• Fixed occasional problem downloading data with incorrect longitudes.
• Renamed analogues to references.
• Converted some ClearWin+ windows handles to be usable in 32- and 64-bit mode.
• Modified ClearWin+ calls to be callable from other compilers.
• Fixed problem with console scrollbars on Windows 10.
• Added headers for mode optimization with PCR.
• Indicated GROC scores.
• Enlarged default size of some forecasts graphics.
• Simplified access of input files.
• Simplified reading of initialization file.
• Simplified construction of Help file paths.
• Simplified creation of new windows by allowing additional optional arguments.
• Added grey option to button function.
• Added function for creating a drawing area.
• Updated some Help pages.
• Update to LAPACK 3.7.0.
• Implemented some additional translations.
• Ended support for version 12 project files and earlier.
• Forced all references to project and program versions to have explicit KIND.
• Introduced Result(check) for checking functions.
• Deleted some redundant USE and INTRINSIC statements.

version 15.5.13 (2017-06-20)

• Improved some error messages for invalid PFV input files.

version 15.5.12 (2017-06-12)

• Enabled single-forecast PFV.

version 15.5.11 (2017-05-30)

• Fixed occasional problem changing climatological period.
• Fixed problem with category shading on exceedance probability curves when x-axis is scaled.
• Fixed occasional fatal problem with exceedance probability curves.
• Fixed occasional problem changing or toggling transformation option.

version 15.5.10 (2017-04-21)

• Fixed possible fatal error if no data are downloaded in batch version.

version 15.5.9 (2017-04-20)

• Fixed occasional problem with new synchronous predictors warning.
• Fixed problem opening new Y file when the curent file is open with a persistence component.
• Fixed duplicate view menu label running beginner mode.
• Colour direction reset to Y-variable dependent direction uponre-opening a project file.
• Prevented normal-category shading from reversing on forecast probabilistic maps.

version 15.5.8 (2017-04-06)

• Introduced warning for synchronous predictors and predictands when synchronous flag is switched off.
• Changed forecast year to that for first month of forecast period when there is a persistence component.

version 15.5.7 (2017-03-23)

• Fixed problem saving PCR project after forecasting.
• Fixed occaional problem saving projects with forecasts.

version 15.5.6 (2017-03-14)

• Improved default start at dates when Y files are monthly and X files are GCM outputs.
• Fixed occasional problem with start-at dates resetting.

version 15.5.5 (2017-02-03)

• Implemented work-around for memory allocation problem in FTN95.
• Fixed problem calculating odds when climatological probabilities are zero.
• Fixed problem rouding probabilities when one or more of the probabilities is zero.
• Initialised unused pointers to prevent problems with strict compilers.

version 15.5.4 (2016-11-08)

• Corrected occasional problem opening performance measures window.
• Fixed problem with truncated .CPT project file extension.
• Fixed occasional problem not showing all forecasts on graphs.
• Corrected intent declaration for parse_files argument.
• Fixed memory problem with GCM.
• Fixed some problems with PFV project files containing results.
• Fixed problem calculating ignorance score when a probability is zero.
• Fixed problem saving retroactive and forecast probabilities for all categories.

version 15.5.3 (2016-10-11)

• Added context-specific help for graphics results.
• Restored default projects file directory.
• Fixed problem with new view prompts in batch version.
• Fixed problem using old output file numbers in batch version.
• Updated some Help pages.

version 15.5.2 (2016-10-09)

• Enabled opening of project files as a command line argument.
• Enabled reading of annually sequenced data for non-calendar months or seasons.
• Fixed new problem with some GCM downloads.
• Fixed new problems with menus in batch version.
• Fixed some occasional problems creating project files in batch version.
• Enabled use of old output file identifiers in batch version.
• Improved positioning of labels and scores on ROC graphs.
• Reactivated OK as the default button.
• Minor modifications to some text output.
• Implemented some additional translations.
• Generalized label definitions.
• Generalized button construction.
• Further simplified menu construction.
• Updated some Help pages.

version 15.5.1 (2016-09-19)

• Added option to save graphics montage.
• Added option to scale graphics.
• Added options to save images in Portable Network Graphics (PNG) or Enhanced Metafile Format (EMF).
• Added option to remove category shading on graphs.
• Added option to restore defaults (in windows version).
• Added updated X PC and X CCA mode scores to graph when forecasts have been activated.
• Added option to rescale forecast probability maps.
• Added option to save X CCA forecast scores.
• Renumbered file output numbers.
• Browse now remembers the previous directory (in Windows version).
• Browse now remembers the default file name when saving an output file or graphic.
• Prevented error message when trying to save graphic after a canceled browse.
• Added missing time options menu to batch version.
• Added option to control how CPT proceeds after an invalid prompt response in the batch version.
• Reorganised menus for batch version for greater compatibility with windows code.
• Minor modification to calculation of quantiles.
• Fixed problem viewing forecast probabilities.
• Fixed problem viewing forecasts on graph when graph has been rescaled.
• Fixed problem with duplicate .tsv file extension on automatic downloads.
• Fixed problem with incorrect label for a PFV results file.
• Fixed problem with missing cpt:ncat tag in some PFV output files.
• Fixed possible incorrect dates in interpolated S data output files.
• Fixed possible problem after saving climatological averages with a persistence component.
• Fixed some occasional problems with default output filenames.
• Fixed some minor formatting problems with property sheets for output files.
• Removed ROC area from unformatted ROC output files.
• Reordered property sheets for output files.
• Simplified coding of property sheets for output files.
• Simplified coding of data output.
• Simplified menus coding.
• Simplifications to code for formatting results windows.
• Generalized coding for setting of axis limits.
• Reformatted code for greater legibility.
• Implemented additional translations.
• Added some missing Intrinsic declarations.
• Updated Help pages.

version 15.4.1 (2016-08-11)

• Implemented ignorance score and its decomposition.
• Implemented Brier score decomposition.
• Added option to calculate verification scores using binned forecast probabilities.
• Enabled colour reversals on skill maps and mode maps.
• Simplified setting of default contour intervals.
• Removed conditional access to Options ~ Verification Settings.
• Changed some radio buttons to check boxes.
• Added option to select integer from a list of values.
• Simplified some ClearWin+ calls.
• Renamed some variables and routines.
• Updated some Help pages.

version 15.3.9 (2016-06-10)

• Added units to GrADS control files.
• Fixed some problems with GrADS control files.
• Added degrees of freedom to prediction error variance output files.
• Fixed problem downloading CMC4 model data if dates only from 2011 onwards are selected.
• Indicated earliest date available when download dataset is changed.
• Fixed occasional problem running retroactive forecasts with persistence component.
• Fixed problem with reversed black-and-white menu flag.
• Fixed problem saving ROC results in batch version.
• Fixed problem saving JPEG files for results windows with multiple images.
• Fixed some problems with automatic downloads for batch version.
• Introduced a colours definition file.
• Introduced a derived type for some grey-menu switches.

version 15.3.8 (2016-02-05)

• Introduced NAG_BIN_DIR environment variable for batch version.

version 15.3.7 (2016-01-28)

• Removed patches for resolved NAGWare bug (NAGWare 6.0 build 1064).
• Corrected precision of a variable when calculating regression parameters.
• Corrected inaccuracy in calculation of gamma parameters when censoring is applied.
• Fixed occasional problem with x-axis limits when customizing regression plots.
• Prevented double calculation of bootstrapping when bootstrap window is opened.

version 15.3.6 (2015-12-16)

• Prevented some fatal errors after setting invalid persistence components.
• Fixed problem displaying CCA graphs for index data.
• Fixed problem with Data ~ Update in Windows version.
• Removed regression line from regression plots when the Y transformation option is on.
• Changed station labels in some output files to index labels when Y file is index.

version 15.3.5 (2015-11-24)

• Updated GPCC downloads to version 7.
• Added GPCC 6 as a precipitation download option.
• Resolved some occasional problems saving CCA results.
• Fixed occasional problem showing PFV results for incorrect seasons.
• Fixed problems with PFV due to NAGWare bug.
• Fixed occasional fatal error saving project after File ~ New.
• Corrected headings on ranked hits table for batch version.
• Updated some Help pages.
• Deleted some redundant USE and INTRINSIC statements.

version 15.3.4 (2015-10-22)

• Fixed occasional problem with gaussian transformation when running retroactive forecasts.
• Fixed problem displaying probabilistic verification scores.
• Fixed memory problem after cancelation of output file during merging.
• Fixed occasional problem with start dates in file merging.
• Fixed problem with file merge when user changes the start-at dates.

version 15.3.3 (2015-10-21)

• Fixed problem merging files containing multiple fields.
• Improved default start-at dates for file merging.
• Fixed inability to change score for skill maps in batch version.
• Deleted some redundant USE statements.

version 15.3.2 (2015-10-20)

• Enabled opening of weekly and pentadal data files with common start dates each year.
• Improved plotting of sub-seasonal data.
• Modified some Spanish translations.
• Simplified routine for plotting a line on a graph.

version 15.3.1 (2015-10-06)

• Implemented file merge and updated options.
• Enabled duplication of gridded fields to allow for multiple domains of the same field.
• Added GPCC 6 as a precipitation download option.
• Added CMC4, GFDL-FLOR-B01 and COLA-RSMAS-CCSM4 as GCM download options.
• Corrected some download prompts in the batch version.
• Introduced limits on start-at dates consistent with data in file.
• Removed ROC diagram for beginner version Performance Measures.
• Moved Prediction Intervals pop-menu item to Customise.
• Fixed problem restoring dates of forecasts from project files.
• Updated some Help pages.

version 15.2.2 (2015-09-03)

• Modified some Spanish translations.

version 15.2.1 (2015-09-02)

• Added option to plot and view regression equations in MLR.
• Restricted number of validation measures for beginner version.
• Added option to set contour limits for forecast probabilities maps.
• Tools ~ Forecast ~ Series shows odds and relative odds together.
• Improved setting and retention of axis limits and graphics titles.
• Improved setting of CCA time series axes limits.
• Added option to set CCA and PCA Y-axis limits.
• Enabled output of some additional GrADS output files.
• Updated ERRST downloads to version 4.
• Updated CRU downloads to version 3.22.
• Added coversion for mm/month.
• Moved cross-validation window length prompt to Options menu.
• Implemented some additional translations.
• Fixed problem using GCM option with index data.
• Fixed occasional problem printing second line of warning message in batch version.
• Simplified some modules.
• Implemented routine to force a value to be within specified limits.
• Renamed some routines.
• Deleted some redundant USE statements.

version 15.1.2 (2015-04-19)

• Simplified setting of output unit numbers and handles.
• Renamed some variables.
• Deleted some redundant declarations.

version 15.1.1 (2015-04-03)

• Introduced option for beginner version (windows version only).
• Eliminated prompt for saving of project file when view is changed.
• Renamed some variables.
• Reordered some USE statements.
• Reorganised subdirectories.

version 14.7.13 (2015-10-20)

• Fixed some problems reading wide input files.
• Fixed occasional problem selecting subdomains using version 9 station files.

version 14.7.12 (2015-10-06)

• Fixed occasional problem with persistence component when opening Y file before X file.
• Included missing persistence component in the dates of some output files.

version 14.7.11 (2015-09-09)

• Fixed occasional problem indicating incorrect station name on maps.
• Fixed occasional problem outputting data with vertical level indicators.
• Removed cpt:model tag from output files when model is unknown.
• Removed some partially implemented code intended for version 15.

version 14.7.10 (2015-08-14)

• Fixed additional problem running CPT in Portuguese.
• Fixed problem changing language in batch version.
• Prevented output of some invalid files in batch version.
• Removed spurious output file when running forecasts with persistence.

version 14.7.9 (2015-06-15)

• Fixed problem with Pearson’s skill map.

version 14.7.8 (2015-06-15)

• Enabled output of some additional GrADS output files.
• Added regression constant to output files when using PCR.
• Activated construction of download URLs for batch version.
• Implemented error message to distinguish constant fields from missing values.
• Implemented colour bars with twenty colours, when needed.
• Fixed some problems with persistence component prompt when SPI option is off.
• Fixed occasional problem switching between persistence and no-persistence.
• Fixed occasional problem with forecast dates in batch version.
• Fixed occasional problem opening multi-field files.
• Fixed occasional problem viewing some forecasts with multi-field non-gridded data.
• Fixed occasional problems saving results for multi-field non-gridded data.
• Fixed problem recognising alternative directory markers.
• Simplified changing of modes.
• Deleted some redundant USE statements.

version 14.7.7 (2015-05-20)

• Permitted common start date in year for pentad and weekly data.
• Recognised alternative directory markers.
• Fixed problem reading Portuguese labels.

version 14.7.6 (2015-05-16)

• Improved efficiency calculating some scores.
• Implemented work-around for backup file initialisation problem with NAGWare.
• Set probabilities to defaults if they are unspecified in the X input file for PFV.
• Fixed occasional fatal error plotting maps when there is only one line of latitude or longitude.
• Fixed occasional problem with some results when number of years is large.

version 14.7.5 (2015-05-12)

• Fixed problem saving Y categories.
• Fixed occasional problem incrementing days for daily sequenced data.
• Fixed problem with logarithmic axes.
• Fixed problem saving Y categories in PFV.
• Prevented PFV from returning error message if all probabilities are negative, but are not equal to the specified missing value, or if the probabilities sum to zero.
• Prevented occasional incorrect warning when trying to download updated GCM data.

version 14.7.4 (2015-04-02)

• Added station indicators to climatological correlations maps.
• Improved data download advisories for invalid dates.
• Improved resetting of download dates after advisory.
• Fixed occasional failure to download latest available data.
• Fixed occasional problem indicating season selection when selecting multiple months.
• Fixed occasional problem indicating spurious initialization date in current seasons selection indicator for data downloads.
• Fixed problem opening help pages.
• Fixed problem with contouring on climatological correlation maps.
• Fixed occasional problem running PFV with version-9 Y files.
• Fixed occasional problem reading multi-lagged index and station files.

version 14.7.3 (2015-03-31)

• Fixed problem downloading CFSv2 U and V components.

version 14.7.2 (2015-03-27)

• Fixed occasional problem reading data with persistence component switched on.
• Fixed occasional problem with working directories.

version 14.7.1 (2015-03-20)

• Allowed download of data at multiple geopotential levels.
• Added option to download U and V components as multiple fields.
• Added options to download GCM outputs of variables by geopotential heights.
• Added option to adjust how lengths of months are handled.
• Added function to set initial colour direction based on the variable name.
• Updated CPT URL.
• Improved initial estimate of climatological period for PFV when using seasonally sequenced data.
• Improved initial estimate of climatological period for PFV when the Y file does not contain an independent period.
• Corrected problem with PFV for non-equiprobable categories.
• Corrected failure to abort when user elects not to continue after changed number of modes.
• Corrected occasional problem running PCR in batch version.
• Corrected occasional erroneous indication of multiple download season selections for GCMs.
• Fixed some downloads that were not working.
• Fixed some occasional problems reopening PFV project files.
• Fixed occasional failure to reverse colours.
• Modified code for constructing menus.
• Changed some accelerator keys.
• Added a root directory variable for development versions of CPT in new repository structure.
• Deleted some redundant USE statements.
• Deleted some redundant IMPLICIT declarations.
• Added some missing and deleted some redundant INTRINSIC declarations.
• Updated some Help pages.

version 14.6.4 (2015-01-15)

• Corrected version patch number.
• Fixed occasional problem indicating current season selection.
• Fixed problem downloading most recent ECHAM4.5 data.
• Fixed problem downloading GCM data for 0 lead-times.
• Fixed problem downloading realtime CFS2 data for temperature.
• Fixed occasional problem resetting forecast precision and probability rounding.
• Improved y-axis limits for CCA time series graphs.
• Improved output of regression coefficients for index X files.
• Permitted pentad and weekly data to be represented by a date rather than a period.

version 14.6.3 (2015-01-06)

• Prevented occasional problem changing EOF or CCA mode.
• Implemented initialization routine for images.
• Reset some incorrect INTENT declarations.

version 14.6.2 (2014-12-16)

• Improved error messages when reading gridded files.
• Improved speed of reading files that have been saved in a project.
• Fixed problem opening Y file when persistence component is on.
• Fixed occasional problem setting a default climatological period.
• Corrected occasional indication of wrong persistence month when setting SPI period.
• Fixed occasional problem constructing ordinal numbers.
• Allowed for trimming of trailing tabs.
• Updated some Help files.

version 14.6.1 (2014-11-27)

• Added option to round forecast probabilities.
• Prevented forecast probabilities from rounding down to zero.
• Forced forecast probabilities to add to 100.
• Added indicator of current season selection for download and target season.
• Improved default domain settings if single station lies exactly on an integer line of latitude or longitude.
• Modified CFS2 downloads to the new public site for the realtime component.
• Modified season representation for long seasons.
• Prevented occasional unecessary recalculation of forecasts.
• Prevented occasional fatal error when calculating labelbar intervals.
• Project results restored if there is a problem only in reading forecasts.
• Fixed problem reading forecasts from project files.
• Fixed occasional problem with labelbar for maps.
• Generalized increment and decrement of months.

version 14.5.1 (2014-11-24)

• Added option to allow synchronous predictors.
• Added realtime forecasts for CFS2 downloads.
• Added Data menu item to title window.
• Implemented checks on download dates.
• Modified prompts for target season.
• Minor modifications to some default graphics titles.
• Fixed problem with colour bar on odds maps.
• Simplified coding for construction of graphics windows.
• Updated some Help pages.

version 14.4.4 (2014-11-06)

• Reorganised download list by data type rather than source.
• Replaced download parameter settings with text file.
• Fixed problem displaying some of the verification skill maps.
• Updated some Help pages.

version 14.4.3 (2014-10-22)

• Added option to download CDAS-1 data from the IRI Data Library.
• Added option to download ECHAM4.5 asst data from the IRI Data Library.
• Added option to select a domain for downloading ERSST3b data.
• Simplified structured box creation for formatting windows.
• Fixed occasional problem with unset minimum number of cases.
• Fixed occasional problem with unset domain label in batch version.
• Implemented work-around for FTN95 bug when reading station and index files with multiple lagged fields.

version 14.4.2 (2014-10-20)

• Added option to download CFS2 hindcasts from the IRI Data Library.
• Added option to download CRU data from the IRI Data Library.
• Added option to download NINO indices from the IRI Data Library.
• Fixed occasional problem backing up real values.
• Fixed occasional fatal error drawing scree plots.

version 14.4.1 (2014-10-07)

• Added option to download ERSST3b data from the IRI Data Library.
• Implemented option to plot forecast odds and relative odds maps.
• Resolved problem with unassigned variable when all cases have too many missing values.
• Fixed a broken link in Help Page for View ~ PFV.
• Corrected default name for lower thresholds climatological output file.

version 14.3.2 (2014-09-18)

• Added option to save interpolated forecasts under PFV in windows version, and Y categories in batch version.
• Improved graphing of seasonally sequenced data.
• Improved estimation of number length of training period for seasonal data.
• Prevented occasional resetting of climatological period when new input file is opened.
• Fixed some problems outputting results for seasonally sequenced data.
• Set missing values for forecast probabilities to -1 for output files to avoid multiple missing value definitions in one field.
• Fixed occasional problem incrementing seasons.
• Fixed problem allocating memory when gamma transformation is on after a reset.
• Fixed problems opening station files with seasonal sequencing.
• Improved error messaging when there are too many missing values.
• Prevented separate prompts for domain settings for each season when running PFV.
• Eliminated error message after closing CPT when output results has been selected from PFV.
• Fixed occasional problems allocating memory for PFV.
• Fixed some occasional problems running PFV with seasonal Y files.
• Fixed some occasional problems with undeclared variables.
• Fixed some occasional problems opening project files with unset input files.
• Fixed some occasional problems opening PFV project files.
• Fixed problem resetting number of variables when changing domain if time sequencing is seasonal.
• Removed some spurious Windows formatting symbols from error messages in batch version.
• Updated some Help pages.

version 14.3.1 (2014-08-13)

• Added option to save observed and retroactive categories.
• Improved output of thresholds and climatological averages.
• Improved default climatological period for PFV.
• Corrected indication of changed climatological period after a forced reset prompt.
• Relaxed tolerance for rounding errors in probability sums.
• Fixed some problems opening seasonally-overlapping sequenced files.
• Fixed problem reading PFV results in project files.
• Fixed problem with PFV when number of Y stations exceeds number of X stations.
• Fixed some occasional problems setting the season indicator.
• Fixed occasional problem reading gridded forecast probabilities.
• Fixed occasional problem identifying stations in PFV.
• Added markers and screen to batch version to enable compatability of windows and batch project files.
• Implemented subroutine for temporary modification of time-sequencing.

version 14.2.3 (2014-07-16)

• Added probability of zero parameter to gamma distribution to deal with censored values.
• Improved scaling of contours and y-axes.
• Improved initial setting of start-at date when X file is opened second.
• Minor improvements in setting of default contours for forecast values.
• Enabled verification options when running retroactive forecasts.
• Forced closure of any results when a new project is started.
• Fixed occasional problem opening files after a seasonally sequenced file.
• Corrected occasional problem setting default length of training period that was too long for seasonally-overlapping sequenced files.
• Corrected re-setting of minimum length of training period for PFV.
• Corrected occasional mislabeling of standardization on some forecast products.
• Corrected some spelling errors.
• Updated some Help pages.

version 14.2.2 (2014-06-08)

• Zero-bound checking applied before seasonal calculations and missing value replacement.
• Fixed occasional problem with restandardization.
• Fixed some problems reading seasonally sequenced files.
• Fixed some problems reading old project files.
• Fixed indication of climatological seasons when seasonally sequenced data are used.
• Corrected occasional error in incrementing seasonally sequenced dates.
• Re-initialized number of used variables after an abort.
• Corrected some spelling errors in messages.
• Renamed some routines and variables.

version 14.2.1 (2014-05-31)

• Implemented option to mark stations as crosses or circles.
• Implemented option to exclude CPT tags in output files.
• Forced station markers to have equal X- and Y-dimensions.
• Enabled reading of multiple season files.
• Added theoretical climatological probabilities and odds to forecast series window when using SPI.
• Improved identification messages when encountering error reading station and index files.
• Fixed occasional problem when running PFV with multiple seasons.
• Fixed occasional problem with SPI.
• Fixed problem with analogue years when using persistence.
• Fixed minor inaccuracies in cross-validation with gamma transformation when using multiple locations.
• Permitted setting of training period to 0 when one or both input files are unset.
• Provided some missing error messages.
• Changed “Number of lags” prompt to “Number of seasons” for PFV.
• Corrected truncation of “Relative Odds” on forecast series window.
• Modified some accelerator keys.
• Corrected occasional problem indicating incorrect station / index details.
• Corrected occasional problem indicating incorrect number of variables.
• Corrected inconsistent indication of season for climatological period when using persistence.
• Captured any errors reading space settings for Y file.
• Improved error message when an input file is protected while opening a project file.
• Set some undeclared variables to permit saving of project files in batch version.
• Stopped support for CPTv10 project files.
• Update to LAPACK 3.5.0.
• Updated some Help pages, including instructions on how to format probabilistic forecast files for PFV.

version 14.1.11 (2014-04-16)

• Fixed problem reading version 9 gridded version with south-to-north latitudes.
• Fixed occasional fatal problem with forecasting in MLR.

version 14.1.10 (2014-04-16)

• Fixed some occasional problems with reading ungridded version 10+ files.
• Improved efficiency of opening version 9 files.
• Fixed problem changing resampling settings in batch version.
• Improved error messaging for unreferenced v9 files.

version 14.1.9 (2014-04-03)

• Fixed some occasional problems with persistence option.
• Fixed some occasional problems with SPI standardization.
• Fixed occasional problem with restandardization of forecasts.
• Fixed occasional problem changing zero-bound.
• Fixed some occasional problems saving project files with results.
• Fixed problem with ACTIONS menu items in batch version.
• Improved memory of settings when view is changed.
• Improved efficiency of reading nongridded files.
• Removed occasional spurious error message when abort button is selected.
• Disabled transformation option menu item when SPI standardization is selected and for PFV.

version 14.1.8 (2014-03-18)

• Fixed problem reading very wide station and reference files.
• Fixed problem with missing data when forecasting with persistence.
• Project file opens without results if there is a problem reading the results.
• Improved clearance of memory when a project file containing results fails to open.
• Project file change recorded when transformation flag is toggled.
• Fixed occasional problem running retroactive analysis.
• Fixed problem with length of retroactive period prompt in batch version.

version 14.1.7 (2014-02-25)

• Recognised cpt:field=pre as precipitation.
• Improved error handling when invalid numbers of modes are entered.
• Fixed problem opening wide station files in version 9 format.
• Fixed problem saving project files with results if climatological period extends beyond training period.
• Fixed problem running PFV with multiple seasons.
• Missing values recognised on forecast maps for PFV.
• Fixed problem with default Y start date for PFV.
• Updated some Help pages.

version 14.1.6 (2014-01-02)

• Fixed occasional problem using GCM option.
• Fixed problem checking latitudes in batch version.

version 14.1.5 (2013-12-23)

• Activated forecast selection on probabilistic forecasts map.
• Added error message when probabilities in X input file for PFV do not sum correctly.
• Permitted reading of X files for PFV with fewer than 4 years.
• Ficed problm changing tailoring standardization after results are calculated.
• Prevented fatal error creating console window when screen size is very small.
• Resolved problem saving correlation climatologies.
• Resolved occasional fatal problem viewing correlation climatologies after opening a new X file.
• Fixed problem replotting correlation climatologies after changing title.
• Rescaled initial y-axis limits when necessaary.
• Fixed occasional problem opening X files with multiple lags.
• Enabled printing of regression coefficients for multiple fields in X index files.
• Fixed problem reading multiple field index files.
• Fixed failure to identify change in season when opening new GCM X input files.
• Fixed occasional problem with missing value warning after changing Y file.
• Improved check for availability of persistence data for forecasts.
• Fixed fatal error selecting next domain when there are multiple fields.
• Renamed some variables.
• Updated some Help pages.

version 14.1.4 (2013-12-02)

•  Fixed problem with Y start dates when using GCM X files.

version 14.1.3 (2013-11-29)

•  Domain prompts are terminated when Apply to all is selected.
• Corrected possible problems if Same as previous domain is selected, but the grid is different.
• Date containing negative values is indicated when zero-nound is switched on.
• Prevented fatal error when fitting gamma distribution with extreme outliers.
• Addressed occasional truncation of station or grid details on results windows.

version 14.1.2 (2013-11-27)

• Resolved fatal problem after a reset and change view.
• Enabled reading of cpt:P tag as an alternative to cpt:Z.

version 14.1.1 (2013-11-25)

• Implemented option to add a persistence component to a forecast (addition to updated forecasts not yet implemented).
• Implemented option to use monthly input Y data so CPT can calculate seasonal totals / averages.
• Implemented option to plot probabilistic forecasts as a single map showing only the probabilities for the most likely category.
• Enabled plotting of climatological thresholds and averages when using PFV.
• Improved initial estimates of start-at dates.
• Implemented option to save formatted output files as tab-, space-, or comma-separated values.
• :Improved messages for saving project files, including eliminating some spurious warning messages.
• Implemented some additional unit conversions.
• Changed headings for missing value boxes when running PFV.
• Fixed problem viewing GCM options after switching to GCM view.
• Fixed some occasional problems with warning messages when project files could not be opend at start-up.
• Reset number of used variables after a file is closed.
• Deactivated Actions menu item when a project that does not have both files set is opened.
• Changed prompts for invalid modes to warning messages that do not abort calculations.
• Corrected climatology when period starts after beginning of training period and endsafter end of training period.
• Remembered climatological period extension option after reset.
• Resolved some occasional problems reading probabilistic station and index files.
• Implemented warning message if X input file is not probabilistic when using PFV.
• Suppressed redundant missing value options for PFV.
• Fixed occasional problem plotting new forecasts in PFV.
• Eliminated some redundant memory allocation for PFV.
• Fixed occasional problems fitting gamma distributions.
• Fixed problem replacing missing values in forecast file by nearest neighbours.
• Fixed problem re-running after selecting new project.
• Fixed occasional problem setting all subsequent field domains.
• Fixed occasional problem displaying forecasts saved in results file.
• Provided missing tagline for upper prediction and confidence limits in output files.
• Included prediction and confidence levels as separate tag in output files.
• Enabled plotting of monthly and seasonally sequenced data.
• Modified procedure for identifying date sequencing.
• Minor improvements in efficiency when sorting.
• Other minor improvements in efficiency by using array assignments, and FORALL.
• Simplified some logical tests by using .EQV. and .NEQV..
• Changed some functions with side-effects to subroutines.
• Simplified some subroutine calls when actual arguments are themselves OPTIONAL dummy arguments.
• Deleted some redundant, and provided some missing, INTRINSIC statements.
• Implemented some additional translations.

version 13.4.2 (2013-10-07)

• Improved handling of zero-bound when transformation flag is switched on.
• Probability of exceedance curves drawn with gamma distribution when appropriate.
• Implemented some additional unit conversions.
• Fixed problem immediately recognising changes to length of training period and number of forecasts when number is not set using fly wheels.
• Improved indication of progress in failed reading of station and unreferenced files.
• Forced cursor-waiting off after abort.
• Fixed occasional problem with truncated text for prompt for number of gridpoints.
• Further simplification of cross-validation coding.
• Updated some help pages.
• Implemented some additional translations.
• Deleted some redundant, and provided some missing, INTRINSIC statements.
• Provided some missing USE statements.

version 13.4.1 (2013-07-31)

• Implemented option to view non-cumulative profits and losses.
• Implemented option to use a gamma distribution for transformation to gaussian.
• Implemented option to convert data to standardized indices.
• Implemented option to apply domain settings to all subsequent domains.
• Minor improvements in efficiency when performing data transformation.
• Fixed occasional problem with some error messages when using languages other than English.
• Fixed problem reading labels file in Portuguese.
• Restored checks for large lags, and corrected spurious checks for daily data.
• Identified last date in file for station data with lagged fields but no additional years.
• Implemented warning message if X input file is not probabilistic when using PFV.
• Resolved some occasional problems reading probabilistic station and index files.
• Fixed occasional problem plotting new forecasts in PFV.
• Provided missing tagline for upper prediction and confidence limits in output files.
• Included prediction and confidence levels as separate tag in output files.
• Enabled plotting of monthly and seasonally sequenced data.
• Simplified output procedure for weather roulette results.
• Simplified cross-validation coding.
• Minor improvements in efficiency of calculating goodness index when transformation option is on.
• Modified some INTENT declarations.
• Deleted some redundant, and provided some missing, USE statements.
• Updated some help pages.

version 13.3.3 (2013-07-15)

• Fixed problem selecting skill score in batch version.
• Re-implemented missing option for skill score output file in batch version.
• Restored pop-up menu on station skill maps.
• Fixed error with PCR cross-validation.

version 13.3.2 (2013-06-25)

• Prevented occasional problem changing forecast year.

version 13.3.3 (2013-07-15)

• Fixed problem selecting skill score in batch version.
• Re-implemented missing option for skill score output file in batch version.
• Restored pop-up menu on station skill maps.
• Fixed error with PCR cross-validation.

version 13.3.2 (2013-06-25)

• Prevented occasional problem changing forecast year.

version 13.3.1 (2013-06-06)

• Added recognition of ensemble data.
• Added GrADS station output.
• Added option to save files as stream / transparent access.
• Permitted reading of seasonally-sequenced files for PFV.
• Added checks for matching X and Y fields for PFV.
• Added check for no matching grids.
• Enabled reading of lagged fields in station and index probability files.

version 13.2.3 (2013-05-02)

• Fixed fatal error after cancellation of climatological period settings
• Fixed occasional problem reading version 9 index and station forecast files with no carriage return at end of last line.
• Fixed occasional problem reading PCR and MLR project files
• Fixed occasional problem with Actions menu after a reset

version 13.2.2 (2013-04-26)

• Fixed problem changing station.
• Modified an incorrect INTENT declaration.

version 13.2.1 (2013-04-18)

• Added resolution slope and ranked hit scores to probabilistic scores and mapping options.
• Added option to plot tendency diagrams.
• Fixed problem changing title of probabilistic score maps.
• Fixed problem changing title of weather roulette diagrams.

version 13.1.3 (2013-04-13)

• Fixed problem with Actions menu after opening a second project file.
• Fixed problems occurring after opening of a second project file is aborted when results have been calculated.
• Fixed problems reading project file containing results when climatological period extends beyond training period.
• Implemented more responsive abort button.
• Further modifications to attributes output file.

version 13.1.2 (2013-03-28)

• Added station name identifier to skill maps.
• Implemented progress meter when calculating confidence intervals for probabilistic verification scores.
• Implemented option to compile batch version in single precision.

version 13.1.1 (2013-03-16)

• Added various procedures for model combination in GCM option.
• Project files can be shared between Windows version and batch version running on Windows.
• Implemented check to see whether X domain is too small for interpolation.
• Added option to save correlation climatologies.
• Added no skill line to attributes output file.
• Output of regression coefficients enabled for all GCM options.
• Adjusted format of bootstrap outputs.
• Eliminated occasional large space in output files between Z-level and units, and prevented truncation of units indicator.
• Blocked file conversion warning message when some different representations of the same units are used.
• Changed progress meter to a pop-up window with an abort option to cancel calculation.
• Some other minor changes in design of interface.
• Implemented additional, and modified some existing, translations.
• Merged Windows and Linux versions, with substantial reorganization of module structures.
• Updated some help pages.
• Deleted some redundant module arrays.
• Deleted some redundant variables.
• Deleted some redundant USE statements.

version 12.6.1 (2013-03-14)

• Domain map is expanded upon redraw if selected area extends beyond data limits.
• Reliability curve regression fit interpolates across empty probability bins on attributes diagrams and in output file.
• Improved format of attributes output file.
• Fixed ocassional problem displaying scree plots.
• Fixed occasional failure to output data for last station.
• Corrected prediction error variance for GCM.
• Corrected cumulative profits and effective interest rate calculations for cases with occasional missing forecasts.
• Deleted some redundant USE statements.

version 12.5.3 (2012-10-27)

• Refreshed progress meter bar after reset.
• Fixed problem with time sequencing when switching views.
• Changed default name of ensembles graphics file.
• Simplified coding of graphics output.
• Reordered some modules.
• Deleted some redundant USE statements.

version 12.5.2 (2012-10-18)

• Fixed problem saving incorrect upper prediction limits.
• Reordered some USE statements.

version 12.4.1 (2012-08-14)

• Partial implementation of option to save files in GrADS format.
• Added option to set number of probability bins to 21 (5% bins) instead of the default 11 (10% bins).
• Added weighted regression line to attributes diagrams and output files.
• Stored maximum percentages of missing variables in project file.
• Switched off redundant standardization for Probabilistic Forecast Verification.
• Set interpolated data to missing when there are no nearby points.
• Fixed occasional problem saving project file after climatological period is adjusted after analysis.
• Fixed problem reading project file with results when transformation flag is on, but retroactive calculations are not performed.
• Fixed occasional problem resetting climatological period.
• Fixed occasional compiler-specific problem reading multi-field files.
• Resolved occasional possible memory leak when calculating goodness index.
• Resolved problem remembering default analogue years.
• Moved some array declarations for improved object orientation.
• Reorganised some modules.
• Deleted some redundant USE and INTRINSIC statements.
• Updated some Help pages.

version 12.3.6 (2012-07-11)

• Fixed problem opening scree plots window.
• Fixed problem opening forecast probabilities window.
• Fixed problem reading stacked multifield forecast probabilities.
• Fixed problem reading index files with lags.
• Adjusted progress meter.
• Applied progress meter separately to missing value replacement and to calculation of climatologies and thresholds.
• Restructured missing values replacement module.
• Updated some Help pages.

version 12.3.5 (2012-06-21)

• Fixed problem reading version 9 station and unreferenced files.

version 12.3.4 (2012-06-20)

• Fixed problem starting CPT with a language other than English.

version 12.3.3 (2012-06-07)

• Fixed problem updating Y Mode maps for multiple fields.

version 12.3.2 (2012-06-07)

• Deleted some redundant USE declarations.
• Deleted some redundant INTRINSIC declarations.

version 12.3.1 (2012-06-04)

• Added options to save graphics in GIF, EMF, and PCX formats.
• Removed JPEG quality scaling prompt when saving BMP files.
• Corrected problem displaying CCA modes when results are read from project files.
• Update to LAPACK 3.4.1.

version 12.0.2 (2012-05-22)

• Renamed the GCM option to GCM Validation.
• Reordered some menu items.
• Improved error messages for incorrectly formatted gridded files.
• Prevented recontouring of forecast values maps after changing of title.
• Fixed problem reading forecast EOF scores saved in CPT.
• Fixed occasional problem displaying X loadings for unreferenced data.
• Fixed some inefficiencies in calculating odds.
• Made all array arguments’ dimensions explicit.
• Implemented a generic graphics window function.
• Changed some PUBLIC declarations to PRIVATE.

version 12.0.1 (2012-05-08)

• Added Probabilistic Forecast Verification (PFV) option – reads forecast probabilities as X input file for verification purposes.
• Project files save and restore results, if available.
• Added option to allow climatological period to extend beyond the range of the training period.
• Made cpt_nfields tag optional if nfields=1.
• Only cpt:T tags (and cpt:S tags if used) need be supplied for lagged fields, and for stack fields (except for the first occurrence).
• In version 9 station files, longitudes can come before latitudes.
• Added climatological probabilities to retroactive and forecast probability output files.
• Changed output of probabilities and odds to indicate the original field, with the units indicating probabilities or odds.
• Added option on title screen to view full date prompts.
• Fixed scaling problem plotting Kendall’s tau station correlations.
• Added South Sudan to maps.
• Enabled handling of pentadal, weekly, and dekadal data.
• Improved plotting of non-annual data, and modified plotting of all time sequences.
• Permitted second time step to be missing (although CPT may struggle to identify sequencing in some cases).
• Fixed occasional problem reading n-day periods.
• Fixed problem with truncated “Kendall’s tau” label.
• Fixed problem calculating p-values when p-values option is switched on without closing existing skill maps window.
• Fixed occasional problem when using multiple near-neighbours and their are no cases when all near-neighbours have non-missing values.
• Fixed occasional problem calculating probabilistic verificaion scores.
• Improved output of longitudes.
• Incorporated climatology calculations into data input progress monitoring.
• Modified handling of progress meter for improved compatibility with Linux version.
• Modified some accelerator keys to avoid duplication.
• Updated to LAPACK 3.4.0.
• Improved compatibility with Windows Vista and Windows 7.
• Introduced some relative date definitions and functions.
• Set default module accessibility to PRIVATE.
• Reorganized USE statements to reflect dependency hierarchy.

version 11.10 (2011-11-11)

• Implemented option to plot correlation maps of predictors.
• Improved handling of unformatted data output.
• Postponed some initializations until after title window to allow fuller translations.
• Implemented additional translations.
• Reduced memory requirements for bootstrapping.
• Modularized some remaining field prompts.
• Modularized data input routines.
• Renamed some variables.
• Reorganized some USE statements.
• Removed some redundant USE statements.
• Supplied some missing IMPLICIT statements.

version 11.09 (2011-08-15)

• Introduced check for invalid number of forecasts.
• Reduced memory requirements and increased efficiency of retroactive calculations.
• Minor improvement in efficiency in checking of climatological period.
• Fixed problem viewing forecasts when number of forecasts is greater than 1.
• Fixed occasional problem reading lagged fields.
• Fixed occasional problem reading multi-field station files.
• Fixed problems saving weather roulette outputs.
• Fixed occasional problem with undefined variable when estimating missing values in the forecast file.
• Fixed occasional fatal errors when opening an input file after a previous failed attempt.
• Fixed occasional problems recognizing forecast file after cancelled opening of an alternative forecast file.
• Improved handling of analogue dates for daily data.
• Implemented additional translations.
• Simplified calling of skill maps routines.
• Simplified extraction of climatological data.
• Streamlined output of gridded data.
• Generalized output of canonical correlations to eliminate need for its own output function.
• Deleted some redundant, and added some missing, USE statements.
• Deleted some redundant INTRINSIC statements.
• Removed a redundant OPTIONAL argument declaration.
• Renamed some variables and procedures.

version 11.08 (2011-07-18)

• Added option to plot climatological category thresholds and averages, and with flexibility to set the contour limits.
• Enabled plotting of multiple forecast fields and lagged fields.
• Added option to set contour limits on forecast values and prediction intervals maps.
• Added option to set y-axis limits on performance measures, forecast series and forecast ensembles graphs.
• Added option to set x-axis limits on probability of exceedance graphs.
• Improved estimation of appropriate contour and tick mark intervals.
• Modified and combined procedures for calculating tick-mark intervals and contours to simplify customization.
• Simplified some mapping functions.
• Fixed problem reading lagged fields as stacked multiple fields.
• Implemented some additional translations.
• Deleted some redundant, and added some missing, USE statements.
• Updated some help pages.

version 11.06 (2011-06-23)

• Implemented option to save probabilities of exceedance.
• Adjusted formatting of probability of exceedance window.
• Improved plotting of daily data.
• Fixed occasional failure to open forecast series or performance measures windows when selecting locations on forecast and skill maps.
• Fixed occasional problems with interpolation and identification of nearest grids.
• Corrected error message when insufficient memory to calculate forecasts.
• Improved checking for length of training period.
• Implemented additional translations.
• Resolved occasional memory problems calculating category thresholds.
• Resolved problem reading version 9 index and station files with version 10 dates.
• Renamed some variables.
• Deleted some redundant, and added some missing, USE statements.
• Updated some help pages.

version 11.03 (2011-03-03)

• Implemented conversions to and from cm/day.
• Implemented option to avoid using too many combined numbers of EOF modes in CCA.
• Implemented LAPACK 3.3.0, including reduced memory requirements.
• Implemented additional Spanish translations.
• Disabled Y transformation option for GCM.
• Fixed problem when error messages occurred before labels were intialized.
• Fixed some occasional problems saving regression coefficients.
• Fixed occasional problems identifying and replacing missing values in the forecast file.
• Corrected some error messages when unable to open project files.
• Improved efficiency of calculation of CCA when optimizing the numbers of principal component and CCA modes.
• Other minor improvements in efficiency.
• Reduced some occasional problems with rounding errors when CCA model is overfit.
• Resolved some problems with retroactive forecasts for GCM when Y transformation flag is switched on.
• Fixed occasional problem with grey View menu items when opening successive project files.
• Fixed occasional problem reading multiple field files.
• Fixed problem in Linux version with unassociated pointers when reading unreferenced files.
• Fixed problem setting domain latitudes for south-to-north files.
• Fixed problem of drawing map for longitudes less than -180.
• Renamed a local field derived type to avoid possible conflict in the Linux version.
• Simplified call to hcov_maps to avoid problems in the Linux version.
• Improved specification of data precision.

version 11.02 (2011-01-19)

• Set maximum number of principal components to minimum of the number of variables and one minus the number of cases.
• Improved efficiency in calculation of forecasts using CCA.
• Implemented a check for rounding errors in identiying missing values.
• Created labels file for simpler translation of text.
• Implemented additional Spanish translations.
• Modified some accelerator keys for the Spanish menu items.
• Modularised the principal component calculation options menu.

version 11.01 (2011-01-06)

• New option to calculate probabilistic verification scores for retroactive forecasts
• Implemented automatic language detection, multi-language menu items (English and Spanish), and an option to set the language.
• Permitted multi-language month abbreviations in version 9 gridded input files.
• Implemented option to compare station or gridded data with interpolated or nearest GCM gridboxes, with various options for bias and skill corrections.
• Implemented option to choose correlation coefficient for calculating goodness index.
• Set default coorelation coefficient for goodness index to Kendall’s.
• Implemented option to calculate probabilistic verification scores for pooled retroactive forecasts.
• Added Brier score, ranked probability score, and corresponding skill scores to attributes diagrams.
• Added option to toggle printing of scores on ROC graphs and attributes diagrams.
• Added options to plot 2AFC skill maps for continuous and categorical forecasts.
• Permitted different mssing value flags for different fields.
• Permitted missing years or days in input files except for year/day 2.
• Made cpt:T tag line in version 10 input files redundant. This line is no longer needed, or is ignored if present.
• Included file modification date in file definition to prevent potential file reading difficulties.
• Generalized project files so that all analyses have the same project file structure.
• Changed project file extension to .CPT, but included option to search for and open version 9 and 10 project files and extensions.
• Recognised lower-case file project extensions when opening project files.
• Resolved problem with project file filters after unsuccessful opening of project file.
• Modified default estimate of “Start at” dates to avoid occasional invalid settings.
• Changed some accelerator keys to avoid conflicts.
• View MLR menu item greyed when unreferenced X input file is open.
• Minor changes to some menu items.
• Improved error messaging for input file format problems.
• Simplified error message handling.
• Recorded change in project file settings when length of cross-validation is automatically reset.
• Simplified some file output routines.
• Fixed some problems estimating missing values in forecast files.
• Fixed problem reading data in non-default forecast files.
• Fixed some occasional problems saving regression coefficients.
• Fixed occasional fatal error calculating forecasts using old project files.
• Corrected occasional problem shading incorrect longitudes on domain map.
• Generalized probabilistic score routines to allow probabilities to sum to 1 or to 100.
• Added approximate y-axis limits as optional arguments to permit better plotting of biased forecasts.
• Simplified data input routines.
• Supplied missing END qualifiers to READ statements.
• Created array of attributes diagrams to simplify programming.
• New get_structure algorithms to implement more rigorous testing, and to facilitate greater flexibility on input formats.
• Renamed function erfc to avoid conflict with Fortran extensions in some compilers.
• Deleted some redundant INTRINSIC statements.

Version 10.09 (August 26, 2010)

• Permitted different domains for different fields.
• Implemented option to click on forecast maps to open corresponding forecast series window.
• Implemented option to click on skill maps to open corresponding performance measures window.
• Enabled domain selection by rectangular selection of an area on the domain map using the mouse.
• Limited domain shading to map limits.
• Permitted maps wider than 360 degrees.
• Changed default key for domain selection from “OK” to “Redraw Map”.
• Changed “OK” button to “Next” on domain selection window for first few fields.
• Added a “Same as Previous” button on domain selection window for multiple fields.
• Changed ‘Number of EOF extensions’ to ‘Number of additional months/days’.
• Minor changes to some menu items.
• Changed CCA output file descriptions.
• Supplied missing sample RMSE in bootstrap window.
• Supplied missing options to save some graphics as BMP files.
• Prevented occasional problem when first year of data has too many missing values.
• Prevented occasional problem with climatological period when first year of data is omitted.
• Fixed occasional problem plotting forecast values maps.
• Fixed occasional problem printing rescaled values on labelbars.
• Fixed occasional problem setting season when months are undefined.
• Fixed occasional problem locating stations incorrectly.
• Fixed problem reading multi-month station files.
• Fixed occasional problem printing saving regression coefficients.
• Fixed problem showing skill bar charts for unreferenced data with multiple lags.
• Fixed occasional problem shading first line of grids.
• Fixed occasional failure to show selected domain.
• Fixed occasional error calculating forecasts with over-parameterized multiple regression models.
• Fixed problem drawing maps for data with inverted latitudes.
• Changed default Help page to Index.html, and removed redundant Help_Intro.html.
• Modified some Help pages.
• Reorganized file structure checking algorithm.
• Moved screen module to gui.f95.
• Simplified viewport initialization call.
• Renamed some variables.
• Deleted unused variable.

version 10.08

• Added location map to domain selection window.
• Added interface blocks for external routines.

version 10.07

• Corrected problem with forecasts when standardization option is reset after model calculated.
• Renamed tailoring options window title.
• Minor improvements to tailoring options window layout.
• Changed EOF temporal scores output files tag so that the files can be read by CPT as unreferenced files.
• Fixed occasional problem with incorrect dates in predictor time scores output files.
• Corrected remaining problems ocassionally printing incorrect date on forecast output files.
• Updated display of total number of gridpoints / stations / series for forecast file when X domain is changed.
• Erased filename when file selection is cancelled.
• Updated number of used variables in forecast file.

version 10.06

• Applied missing restandardization to forecasts and prediction intervals.
• Corrected occasional problem printing incorrect date on forecast output files.
• Avoided occasional array size inconsistency when printing weather roulette results.
• Fixed occasional problem sequencing daily data.
• Ensured forecast probabilities update when climatological probabilities are adjusted.
• Improved default first date from which to forecast, and number of forecasts.
• Implemented pull down menus for month prompts for daily data.
• Added latitude and longitude prompts for gridded data on bootstrap window.
• Default climatological period set before analysis is run when user attempts to set the climatological period.
• Introduced day and month prompts for climatological period for daily data.
• Resolved problem displaying results for final gridpoint.
• Fixed unequal spacing on map colourbars.
• Increased maximum length of cpt:T line to 2**24.
• Permitted missing ‘/’ at end of XML URLs.
• Corrected error message when boundariesw and lakes files are missing.
• Corrected some spelling mistakes in error messages.
• Renamed get_thresholds subroutine for consistency with menu.

version 10.05

• Corrected progress meter when retroactive option is used with analogue years.
• Corrected some problems with some of the example data files.

version 10.04

• Permitted option to include irregularly lagged EOF extensions.
• Added lakes to maps.
• Added option to mask shading over lakes.
• Added option to mask shading over land.
• Improved error messages for input file formatting problems.
• Fixed occasional problem reading files with a single case.
• Fixed occasional problems reading gridded forecast files.
• Fixed problem calculating forecasts when number of forecasts is more than length of training period.
• Fixed occasional problem resetting climatological period.
• Prevented access of verification results when cross-validation is run after retroactive analysis.
• Minor improvements to progress meter, including prevention of premature termination.
• Corrected occasional problem saving regression coefficients because of unset flag.
• Corrected occasional problem printing longitude markings on maps.
• Corrected occasional problems initializing fields.
• Fixed problems saving ensemble forecasts.
• Set default zero flag for multiple fields to be off.
• Modified the default length of initial training period, to avoid problems with small datasets.
• Minor improvements in spacing of labels on colour bar.
• Improved compatibility with Windows 7.
• Revised IF statement in write_grid to avoid logical error, but that would never occur in practice (resolved to avoid messages for some compilers).
• Updated help pages.
• Added Lulin Song as an author.

version 10.03

• Added option to set category thresholds by analogues years.
• Added option to calculate and save p-values for skill maps.
• Gridded results prompted by latitude and longitude rather than grid number.
• Fixed occasional truncation of grid and station coordinates.
• Corrected some problems formatting bootstrap results.
• Corrected problem showing some retroactive skill maps.
• Corrected problem saving upper and lower prediction interval maps.
• Improved contouring.
• Insured consistency of colour scale.
• Insured shading of last grid square if used.
• Permitted reversal of colour scale on forecast values maps.

version 10.02

• Added option to view all CCA modes upto maximum number selected.
• Replaced mean squared error with % variance on performance measures window, and reordered other scores.
• Permitted near-360 degree maps when longitudes are realigned.
• Improved tick mark interval on y-axis.
• Improved appearance of logarithmic scree plots.
• Resolved occasional problem typing initial length of training period for retroactive forecasts.
• Prevented occasional fatal errors when entering out-of-range settings.
• Corrected forecasts when tailoring options are reset.
• Prevented viewing of verification results when tailoring options are reset.
• Resolved problem viewing forecast ensembles.
• Resolved occasional problem viewing probabilities of exceedance.
• Resolved occasional problem calculating forecasts.
• Resolved occasional problem setting dates for version 9 input files.
• Resolved some occasional problems reading multified / EOF extension gridded files.
• Resolved some occasional problems reading short Z files.
• Resolved problem resetting number of variables when domain setting change is cancelled.
• Resolved possible problem drawing maps when last gridpoint is unused.
• Resolved occasional problem calculating asolute thresholds on standardized data.
• Resolved occasional problem reading structure of station and unreferenced files.
• Implemented temporary fix for expressing forecast in anomalies.
• Corrected occasional problem outputting data when some years are marked as missing.
• Set correct user directories for Spanish and Portuguese versions of Windows.
• Some improvements in ability to run on Windows Vista.
• Deleted some redundant USE statements ad INTRINSIC declarations.

version 10.01

• Permitted reading of multiple fields, and new CPT version 10 file formats.
• Combined Input and Results windows, and windows for different analysis settings.
• Added weather roulette options to retroactive verification.
• Added option to view an ensemble of forecasts based on the assumed error distribution.
• Added option to set climatological period after Y file is set and before running analysis.
• Added odds to forecast series window.
• Added option to show odds relative to climatology.
• Added option to specify precision of forecasts.
• Added option to omit cases when number of missing values is too high.
• Adjusted CCA time series graph to plot X and Y against Y year so that graphs are superimposed when lag/=0.
• Last year of data shown with file information.
• Default length of training period set according to amount of available data.
• Default number of forecasts set according to amount of available data.
• Revised skill map colour spectrum.
• Reduced graphic sizes slightly.
• Corrected occasional problems drawing climatological curve on probability of exceedance graph when data are transformed.
• Permitted climatological period of an outer category to exceed 0.5.
• Climatological period printed under actions when calculating.
• Prompt removed when invalid climatological period updated automatically.
• Confidence intervals saved in single file.
• Saved MLR coefficients based on centred rather than standardized data; regression constant also saved.
• Improved output format for regression coefficients, forecast probabilities and confidence intervals.
• Output files saved in CPT 10 format.
• Accepted “STATIONS” as a valid keyword for version 9 station files.
• Improved progress meter.
• Disabled project save when no modification has been made.
• Renamed ‘Graphics’ menu item to ‘Modes’.
• Renamed ‘Thresholds’ menu item to ‘Tailoring’.
• Renamed ‘Data Output’ menu item to ‘Output Results’.
• Moved forecast data output to Output Results menu.
• Added options to save forecast and retroactive odds.
• Parameterized the calculation of the ClearWin+ Window size.
• Prevented fatal error when climatological period is invalid or too short.
• X EOF calculation option restored after MLR.
• Fixed problem with forecasts when resetting standardization option after model fit.
• Prevented MLR calculation when gridded or station X file is opened prior to viewing MLR.
• Improved data availability checks for retroactive calculations.
• Prevented fatal error when degrees of freedom for Student’s t-distribution are zero.
• Prevented programme termination if CPT.ini file in user’s directory is not found.
• Prevented occasional fatal error when a principal component explains minimal variance during optimization.
• Prevented some occasional fatal errors when using MLR with large numbers of predictors.
• Error and warning indicators printed in bold.Updated ifile derived type to include more extensive date information for improved lag checking.
• Created CPT_Data static library to contain parameter settings.
• Converted variable inclusion flags to indices for improved efficiency.
• Modularized error, warning, and advisory notifications, and improved error diagnostics.
• Improved efficiency of dataset structure identification for pre-v10 input files.
• Improved memory handling for pointers.
• Simplified checking for missing values.
• Minor improvements in efficiency of construction of date strings for progress prompts.
• Simplified calling of map-drawing routine.
• Created help initialization subroutine.
• Simplified handling of project files.Deleted some redundant default and back-up variables.
• Deleted some redundant USE statements.

version 9.11

• Prevented occasional estimation of negative values when zero-bound option is set.Resolved occasional problems clearing memory after unsuccessful forecast calculation.
• Updated CPT homepage URL.

version 9.10

• Added option to save prediction error variances.
• Added option to accept approximate data limits as domain settings.
• Fixed occasional problem saving incorrect latitudes and longitudes for some station data output files.
• Remembered last initial length of training period for retroactive forecasts.
• Set lower limit on initial length of training period for retroactive forecasts.
• Modified gridded file date checking to permit greater flexibility.
• Fixed occasional fatal error calculating variance ratio.
• Parameterized some error messages.
• Removed access to some redundant default variables.
• Changed some conflicted accelerator keys.
• Generalized construction of some graphics titles.
• Deleted a redundant IF statement.

version 9.09

• Fixed occasional problem resetting length of training period.

version 9.08

• Fixed fatal problem plotting forecast values.
• Fixed problems resetting graph titles.
• Fixed occasional problem resetting length of training period.

version 9.07

• Added options to save graphics as .BMP files.
• Changed some accelerator keys.
• Fixed occasional fatal problem calculating forecast probabilities.

version 9.06

• Implemented 2AFC scores and variance ratio verification measures.

version 9.05

• Simplified initialization of some graphics variables.
• Eliminated some graphics variable-naming conflicts.
• Supplied some missing IMPLICIT statements.
• Deleted some redundant variables.
• Deleted some redundant USE statements.

version 9.04

• Resolved occasional problem allocating memory for forecasts.
• Resolved some problems with the cursor after certain error messages.
• Simplified checking of need for forecast calculation.
• Modularized standardization options.
• Alleviated problem with hanging cursor on probability of exceedance windows.
• X and Y output files reset.
• Moved missing value replacement routines from data_input to statistics module.
• Missing value replacement performed after both datasets read.
• Simplified prompting for changed project file.
• Renamed some functions and subroutines for greater clarity and consistency.
• Simplified checks for stopped forecast calculations.
• Moved a calculation flag to analysis module.
• Removed some redundant variables.
• Removed some redundant and supplied some missing USE statements.
• Removed some redundant and supplied some missing INTRINSIC declarations.

version 9.03

• Resolved problem allocating memory resulting from ALLOCATE bug in new compiler.
• Added hour-glass cursor when reading project file.
• Major restructuring of analysis, cca, and mlr modules to facilitate implementation of DLL structure.
• Minor restructuring of statistics module to facilitate implementation of DLL structure.
• Simplified checking of program settings.
• Combined PCR and MLR modules.
• Simplified control of title and input windows.
• Simplified forcing of minimum training period length, and of odd cross-validation window length.
• Minor improvement to standardization procedure.
• Correction to occasional problem with station longitudes.
• Corrected identification of daily data starting on the last day of the month.
• Simplified code for determining order of magnitude.
• Created separate routines for standardization and unstandardization to avoid potential confusion.
• Editted some ungrammatical messages.
• Derived type INTENT(OUT) changed to INTENT(INOUT) when not all items are set.
• Minor revisions to memory management.
• Added some missing PUBLIC declarations.
• Added some missing INTRINSIC declarations.
• Removed some redundant variables.
• Removed some redundant USE statements.
• Removed some redundant and supplied some missing INTRINSIC declarations.

version 9.02

• EOF loadings shown in maps and output adjusted for latitude weights.
• Fixed problem introduced in version 9.01 with overwrite prompt.
• Simplified CCA and PCR code.
• Implemented LAPACK 3.1.1.
• Reduced memory requirements.

version 9.01

• Divided data_io module into input and output.
• LAPACK routines included as DLL.
• Simplified analysis and graphics module to facilitate implementation of DLL structure.
• Minor improvements in efficiency of plotting of probability of exceedance curves.
• Replaced overwrite function with print_qwarning.
• Moved make_coor function to graphics module.
• Renamed some functions and subroutines for greater consistency.
• Removed some redundant USE statements.

version 8.08

• Permitted reading of continuous daily data.
• Adjusted correlation algorithm to give more accurate results when variances are very different.
• Implemented missing year checks for unreferenced data.
• Fixed an occasional problem reading station data from forecast file.
• Made month format in gridded files case insensitive.
• Renamed some variables.
• Removed some redundant USE statements.

version 8.07

• Fixed occasional fatal error drawing colour bar.
• Updated help pages.

version 8.06

• Disabled gridded and station X input files for MLR.
• Removed low resolution map option.

version 8.05

• Implemented multiple linear regression (MLR).
• Parameterized analysis names.
• Corrected occasional error in indicating project file directory.
• Removed some redundant USE statements.

version 8.04

• Implemented option to plot cumulative % of variance on scree plots.
• Improved error message on failed opening of CPT.ini.
• Simplified checking of invalid lags.
• Introduced IRI logo on title page.
• Parameterized copyright dates.
• Parameterized font type.
• Alternative font used if default fonts unavailable.

version 8.03

• Added option to save retroactive forecast probabilities and upper and lower retroactive prediction limits.
• Thresholds and standardization options can be set from input window.
• Added category shading to exceedance probability curves.
• Activated exceedance probability curves for all options.
• Input Y data saved standardized according to standardization option.
• Corrected forecasts for when transformation flag is on.
• Corrected identification of retroactive and forecast categories.
• Fixed fatal error when saving forecast probabilities if output file is not formatted.
• Changed some ‘reliability diagram’ labels to ‘attributes diagram’.
• Upper and lower prediction limits saved as %s if anomalies are defined as %s.
• Simplified standardization implementation.
• Prevented attempts to save data after failed file opening for some output file types.
• Minor improvements to progress meter.
• Simplified definitions of retroactive period.
• Added number to output file derived type to simplify file identification.
• Added some missing INTRINSIC statements.

version 8.02

• Corrected plotting of frequency histograms on attributes diagrams.
• Corrected retroactive forecast probabilitiy calculation when transformation option is on.
• Improved label positioning on retroactive ROC verification graph when skill is negative.
• Added ROC areas to ROC graph labels.
• No skill line on attributes diagram changed to dash-dotted.
• Minor improvements to black and white graphics.
• Prevented spurious prompt to save project file changes after file is closed by switching analyses via View menu item.
• Supplied some missing INTENT statements.
• Simplified some subroutine calls.

version 8.01

• Retroactive forecast probabilities calculated.
• Implemented attributes and ROC diagrams for retroactive forecasts for all points.
• Simplified unformatted output of ROC diagrams.
• Corrected resetting of ROC output file name.
• Corrected occasional failure to recalculate forecasts when first year from which to forecast is reset.
• Corrected minor inaccuracies in calculating retroactive forecasts when latitude weighting is applied.
• Corrected calculation of retroactive forecast categories.
• Retroactive forecast update interval remembered.
• Revised calculation of probability of exceedance curves.
• Implemented additional checks to avoid overflow errors.
• Modified output format of ROC results.
• Substantial reorganization of modules.
• Major restructuring of cca and pcr modules to improve efficiency given new retroactive probability forecasts.
• Improved memory handling.
• Deleted some redundant USE and INTRINSIC statements.

version 7.06

• Added colour indicator to Y-axis of CCA time scores graphs.
• Corrected colour indicators on validation graphs for black and white option.
• Fixed occasional problem saving unreferenced output files.
• Error message issued if a file with its name containing the % character is opened.
• Prevented occasional fatal error resulting from floating errors in calculating the variance of the last EOF.
• Corrected default CCA map and graph titles.
• Modified PUBLIC/PRIVATE attributes of some graphics parameters.
• Supplied some missing INTRINSIC statements.

version 7.05

• Fixed problem introduced in version 7.01 updating forecast probabilities when thresholds are changed.
• Corrected problem saving regression coefficients for unreferenced data.
• Only the optimal number of CCA modes saved in output file to avoid occasional fatal error when saving.

version 7.04

• Maximum number of EOFs saved in output files rather than optimum number.
• Principal component scores plotted with correct variance.
• Principal component scores calculated with PCR saved with variances equal to corresponding eigenvalues.
• Implemented option to save hit and false-alaram rates from ROC graph.
• Switched off hour-glass cursor after incorrect initial retroactive training period is specified.
• Fixed fatal problem calculating latitude weights when latitudes are inverted.
• Improved latitude weighting scheme for domain boundaries.
• Improved hadnling of zero-bound.
• Fixed occasional fatal problem when saving predictor time scores for forecasts.
• Fixed problem calculating forecasts using PCR with Y transformation option switched on.
• File initializations moved to iofiles module.
• Deleted some redundant USE statements.

version 7.03

• Fixed problem with latitude weighting when only two lines of latitude are used.
• Improved forecast probability estimates when transform Y data option is activated.
• Fixed occasional problem reading forecast file after unsuccessful forecast file change.
• Previous forecast file restored after unsiccessful opening of new file.version 7.02
• Fixed problem running PCR with transform Y data option activated.version 7.01
• Added option to set a zero-bound.
• Added option to transform forecasts to % of average.
• Reactivated option to transform Y data to normal.
• Added option to set model update interval during retroactive forecasting.
• Disabled probability of exceedance plots if normalization and/or zero-bound option is activated.
• Major improvements in efficiency when optimizing numbers of modes.
• Goodness index indicated even without optimization.
• Output files saved as tab-delimited.
• Can view all principal components, not just those used.
• All principal component scores plotted and saved with variances equal to corresponding eigenvalues.
• Cosine latitude weighting applied to gridded data when calculating principal components.
• Simplified calling of CCA and PCR routines.
• Reduced memory requirement for calculating goodness index.version 6.10
• Ensured that forecasts are recalculated if thresholds are updated but a new forecast window is not opened.
• Occasional improvements in efficiency of calculation of forecasts.
• Deleted some unused variables.
• Removed an unused grey menu item flag.version 6.09
• Parameterized length of station names and months for improved compatability with source code version.
• Parameterized output formats for improved flexibiliity.
• Parameterized length of month strings.
• Restructured routines for output of some output formats.
• Minor improvements in efficiency of output to some files.
• Fixed some occasional output problems.
• Improved data structure checking for gridded data files.
• Moved get_structure to an internal procedure of get_ifile.
• Changed some index names for greater consistency.version 6.08
• Fixed problem opening gridded files introduced in version 6.07.version 6.07
• Fixed problem saving cross-validated scatter diagram.
• Changed default first year to be same as first year of opened file.
• Corrected problem using “LON” keyword.
• Fixed spurious memory allocation error message issued when forecast file is changed.
• Adjusted default error bar for predictions to 68.3%.
• Changed default maximum number of Y EOF modes.
• Improved file format checks for gridded data.
• Implemented improved KIND selection for REAL constants.
• Supplied some missing intrinsic statements.version 6.06
• Fixed occasional problem with adjustments to thresholds when climatological period is reset.
• Resolved problems with saving graphics in Output subdirectory.
• Read input file error messages changed to indicate number of years in training period read successfully.
• Changed years in copyright statement on start-up window.
• Editorial corrections made to Help About window.
• Principal component scores plotted and saved with variances equal to corresponding eigenvalues (corrected from 6.05).
• Resolved problems plotting bar charts of EOF loadings for unreferenced data.
• Corrected warning when problem saving PC regression file using gridded data.
• Converted numbers of X and Y variables to targets to avoid compilation problems with some compilers.
• Replaced some MATMUL calls for compatibility with source code version, which was experiencing large rounding errors with some compilers.version 6.05
• Principal component scores plotted and saved with variances equal to corresponding eigenvalues.
• Added option to save predictor EOF time scores for forecast data.
• Fixed problems using anomalies and standardized anomalies.
• Moved standardization options to Threshold Settings.
• Added standardization option to graphics titles.
• Increased maximum size of graphics titles, and decreased font size.
• Fixed problem with absolute thresholds radio button.
• Fixed occasional problem with first year of training period introduced at version 6.04.
• Minor modifications to estimation of percentiles when thresholds are beyond range of data.
• Fixed occasional problem identifying whether to optimise number of modes when running CCA.
• Improved structure and efficiency of data checks.
• Improved structure and efficiency of domain checks.
• Deleted some redundant USE variables.version 6.04
• Corrected X input file label on Y input section.
• Forced immediate update to prediction interval length when reset.
• Changed number of grids / stations / series to zero when no input file is open.
• Simplified functions for setting output files and file formats.
• Simplified subroutine call for reading station data.
• Removed redundant Help menu items from Output File Definitions window.
• Changed some function and derived type names.version 6.03
• Implemented option to plot exceedance probability graphs.
• Implemented option to print and save forecast values as anomalies or standardized anomalies.
• Major redesign of graphics code.
• Modifications made to normalization procedure.
• Improved traps to prevent occasional fatal errors when windows are closed prematurely.
• Added climatological period to forecast series window.
• Corrected climatological period indication on forecast probabilities window.
• Updated help pages.
• Temporarily disabled Y data transformation option.
• Changed function names in forecast module for clearer structure.version 6.02
• Number of latitudes and longitudes / stations / series detected automatically.
• Line-wrapping no longer permitted in input files.
• Maximum input file line length of 1048576 characters.
• Increased maximum width of output files in Windows version of CPT.
• Updated help pages.version 6.01
• Separate initialization files and directories for multi-users.version 5.07
• Implemented options for defining forecast error-variance.
• Prediction confidence level saved in Project file.
• Allowed for asymmetric climatological probabilities.
• Allowed for some output files of wider than 1636 longitudes/stations/series.
• Minor changes in format of some output files.
• Correced problem calculating Gerrity coefficients when a category has no cases.
• Modified procedure for estimation of quantiles beyond data bounds.
• Resolved some problems setting the bootstrap confidence level.
• Resolved some problems setting the default bootstrap confidence level and prediction confidence level.
• Added project name to Results Window.
• Removed project name from forecast output file prompt.
• Simplified checks for changed project file settings.
• Simplified various program option prompts.
• Fixed problem resetting default forecast confidence level.
• Supplied a missing accelerator key on title screen.
• Simplified continency table memory allocation.
• Resolved some occasional problems opening forecast files, after an attempt to open an invalid forecast file.
• Implemented some missing error traps for memory allocation problems.
• Implemented some improvements in efficiency of array handling.
• Minor improvements in memory management for bootstrapping.
• Simplified progress meter for improved compatability with source code version of CPT.
• Improved memory management when results window is closed when program is calculating.
• Created categories module.
• Modularized input screens.
• Modularized forcing of odd length and default length of cross-validation windows.
• Modularized calculation of scores.
• Simplified data precision definitions.
• Removed some redundant USE statements.
• Removed some redundant INTRINSIC statements.version 5.06
• Correct keywords saved in unreferenced input files.version 5.05
• Fixed occasional problems identifying stations within specified domain when domain crosses the dateline.
• Minor improvements in efficiency in reading station data.
• ‘LON’ keyword permitted for “LONGITUDE’ or “LONG’.
• File structure identified automatically.
• Fixed fatal error calculating goodness index when any of the cross-validated correlations are +/-1.0.
• Numbers of EOF/CCA modes replaced with minimum numbers.
• Calculations always halted if there are problems with numbers of EOF/CCA modes prior to reading data.
• Corrected problem setting default numbers of Y EOF modes.
• Minor corrections made to calculations of forecast probabilities and prediction intervals.
• Changed accelerator keys for retroactive scatter plots.
• Resolved fatal error calculating retroactive performance measures.
• Deleted some unused variables.
• Updated help pages describing calculation of the goodness index.version 5.04
• Implemented Gerrity score.
• Prevented occasional skipping of series whwen scrolling in bootstrap window.version 5.03
• Removed variance-adjusted contingency tables, and variance-adjusted hit and hit skill scores.
• Corrected poblems with categorical scores for transformed data.
• Implemented LEPS score.
• Included space for Gerrity score to be implemented at a later version.
• Changed format of grid reference / station / variable names on results windows to prevent update when new window is opened.
• Changed column totals for contingency table to indicate percentages of times each of the three categories are forecasted.
• Changed format of performance measures window to freeze output when another performance measures window is opened.
• Changed format of contingency tables window to freeze output when another contingency tables window is opened.
• Replaced forecast thresholds with climatological probabilities on forecast series window.
• Added confidence level for prediction intervals to forecast values maps.
• Added climatological period to forecast values and probabilities windows.
• Resolved conflict between open forecast values and forecast probabilities windows.
• Prevented overwriting of backup absolute thresholds.
• Corrected scaling of indicated bootstrap confidence level.
• Minor changes in some scree plots.
• Corrected upper limit to climatological probability of above-/below-normal.
• Corrected problem with reversed thresholds when climatological probability of above-/below-normal is extremely low.
• Corrected category shading when thresholds are beyond the y-axis range.
• Improved criteria for y-axis rescaling.
• Some smoothing of advance of progress bar.
• Restructuring of validation procedures to improve efficiency and reduce executable size.
• Major restructuring of modules and internally stored results.
• Minor improvements in efficiency of cross-validation procedure.
• Some functions renamed.version 5.02
• Implemented option to transform data to a normal distribution.
• Implemented option to set prior probabilities of above/below, or to use absolute thresholds.
• Climatological period, bootstrap settings, and transformation option saved in Project files.
• Small changes in format of Forecast Series window to prevent update of thresholds in old windows.
• Some early CPT version Project files no longer supported.
• Some restructuring of modules for setting climatological period.
• Deleted some redundant USE variables.
• Updated help pages.version 5.01
• Implemented prediction intervals.
• Added option to draw maps/bar charts of forecasted values with prediction limits.
• Removed the forecast category on Forecast Series windows, and removed option to save the categories.
• Grid spacing based on maximum rather than minimum map dimension.
• Variable names included on forecast map windows for unreferenced data.
• Changed accelerator key for scatter plots to avoid conflict with that for performance measures.
• Fixed an occasional problem with y-axis range on logarithmic scree plots.
• Changed y-axis lable on unreferenced skill graphs to name of score.
• Improved positioning of y-axis labels.
• Improved default definitions of tick mark intervals.
• Minor improvements in efficiency of constructing y-axes.
• Resolved occasional problems with bar graphs extending beyond the x-axis.
• Red, green, and blue graph lines darkened.
• Implemented some preliminary steps to permit future user-setting of contour and y-axis ranges.
• Supplied some missing INTRINSIC statements.
• Updated help pages.version 4.05
• Removed the “no replacement” missing value option, which had been causing some confusion.
• Correction made to calculation of forecast probabilities.
• Fixed problem generating forecasts when number of forecasts has been increased.
• Fixed problem saving some results when using unreferenced data.
• Changed “X variables” prompts to “Explanatory (X) variables” prompts.
• Changed “Y variables” prompts to “Response (Y) variables” prompts.
• Updated help pages.version 4.04
• Minor improvements in efficiency in performing SVD, with accompanying reduction in size of executable.
• Small reductions in memory requirements.version 4.03
• Implemented black and white graphics option.
• Resolved some problems running analysis after cancelled new input file.
• Supplied missing station/grid type when using project file.
• Changed default JPEG filenames for forecast maps to include year.
• Realigned bootstrap setting prompts.
• Implemented LAPACK patches.
• Minor improvements in efficiency in performing SVD.
• Corrected some INTENT declarations, and reinstituted INTENT(INOUT) after compiler bug fix.Version 4.02
• Changed format of forecast probabilities output file, and corrected incorrect output when data are gridded.
• Corrected format of some error messages.
• Removed variance-adjusted best-guess forecasts.
• Increased console window size for screen resolutions of 1792 or greater.
• Corrected occasional problems plotting forecast “maps” for unreferenced data.
• Resolved occasional program hang when all data on bar graphs are negative.
• Set correct upper limit to climatological period.
• Deleted some redundant, and supplied some missing, USE variables.
• Removed some redundant calculations and variables in forecast module.
• Implemented analysis type variables for improved modulation.
• Minor changes to dataset structure definitions.
• Prompts for missing value settings moved to analysis module.
• Deleted forecast probabilities derived type to improve compatibility with EPT.
• Minor improvements in efficiency in setting forecast calculation flag when resetting climatological period.
• Minor improvements in efficiency in performing SVD.Version 4.01
• Implemented option to draw high-resolution boarders and coastlines.
• Implemented option to set graphic titles.
• Implemented data types to allow user-defined axis range at a later version.
• Corrected occasional problems with year limits on forecast graphs.
• Updated some window titles.
• Changed some menu item shortcuts to avoid conflicts.
• Fixed fatal error because of unset climatology when running PCR.
• Fixed occasional problems with data output after an earlier output cancellation.
• Increased console window size for screen resolutions of 1600 or greater.
• Bootstrap confidence intervals activated.
• Graphics frozen on old results windows.
• Eliminated occasional vertical lines on scatter plots.
• Scree plot customise options moved to right mouse click, permitting immediate update.
• Improved precision of values on vertical lablebars.
• Updated help pages for new features, plus general editting.
• New derived type implemented for graphics images, borders, and margins.Version 3.30
• Added option to reset climatological period.
• Threshold values included on forecast series window.
• Improved y-axis scaling.
• Added option to plot scree plots on log-linear axes.
• Added broken-stick to scree plots.
• Fixed problem updating unreferenced variable name on some windows.
• Fixed problem viewing forecast maps when number of forecasts is more than one and lag is more than zero.
• Fixed problems saving data in station format.
• Bootstrap option reactivated (although confidence intervals are not shown yet).
• Updated help pages to include descriptions of new options.
• Changed default JPEG quality to maximum value.
• Some missing axis labels supplied.
• Removed vertical 5-marker lines when number of x-axis points is only 5.
• Removed some redundant USE statements.
• Further generalization of graphics routines.
• Modularisation of output error routines.
• Moved function to obtain data precision to numbers module.Version 3.29
• Corrected occasional fatal error producing contingency tables.
• Minor improvements in efficiency in routines for checking settings.
• Replaced legacy DBLE calls with REAL, KIND=dp.
• Removed redundant INTERFACE blocks.Version 3.28
• Optional vertical year lines activated on forecast graphs.
• Further modularisation to improve compatability with EPT.
• Minor improvements in efficiency of graphics routines.
• Mior improvements in efficiency of initialization of some windows.
• Supplied some missing intrinsic function statements.
• Minor revisiosn made to error, warning, and advisory notes.
• Removed some redundant IMPLICIT statements.
• Renamed some tables routines.Version 3.27
• Fixed fatal problem with threshold calculation from Version 3.26.Version 3.26
• Implemented some minor improvements in efficiency of graph drawing.
• Further modularisation to improve compatability with EPT.Version 3.25
• Fixed occasional problem setting number of forecasts at first attempt.
• Supplied some missing, and removed some unused, USE declarations.
• Removed some redundant INTRINSIC statements.Version 3.24
• Resolved problem accepting default forecast file.
• Resolved problem with file attributes after unsuccessful opening of forecast file.
• Graphics options grouped in Customise menu.
• Improved some error messages for when input files cannot be opened.
• Year(s) keyword accepted in place of Name in unreferenced data files.
• Series name for unreferenced files indicated on relevant validation, contingency table, and
• forecast windows.
• Minor improvements in efficiency of domains comparison function.
• Redesigned tables module for greater compatibility with similar modules.
• Supplied some missing, and removed some unused, INTRINSIC declarations.Version 3.23
• Correct date and month output when both datasets are gridded.
• Additional checks implemented for gridded data.
• X input file provided as default forecast file.
• Fixed occasional memory problems resulting from unsuccessul opening of forecast file.
• Implemented attempt to restore previous forecast file after unsuccessul opening of new
  forecast file.
• Forecast results retained after forecast window closed.
• Year of target data indicated for forecasts with non-zero lag.
• Fixed occasional problems printing longitudes.
• Fixed occasional problems with longitudes exceeding 360 in output files.
• Fixed problem initializing default first year of interest.
• Warning message issued if lag is greater than 1.Version 3.22
• Cross supplied at last point on graphs.
• Input day and month for gridded data printed in output files.
• Adjustments made to some USE statements.Version 3.21
• Fixed problem drawing maps with a range of less than 1 degree.
• Fixed problem drawing maps when only one longitude is selected.
• Fixed occasional problems when optimizing number of canonical modes.
• Removed some redundant and supplied some missing USE arguments.Version 3.20
• Implemented fix for viewing forecast maps at low screen resolution.
• Fixed problem reading unreferenced forecast file.Version 3.19
• Forecast menu item disabled if newly opened project does not have forecast file set.
• Supplied missing CCA column heading for number of modes optimization.Version 3.18
• New menu item added to provide confidence limits and significance tests using resampling
  procedures.
• New menu item added to adjust resampling settings.
• New property sheet added to define default resampling settings.
• CPT.ini file extended to include resampling settings.
• Fixed problem saving forecast maps as JPEG files.
• Reconfigured interface blocks for compatibility with source code Version of CPT.
• Analysis initialisation routines changed to functions.
• Some modules renamed.Version 3.17
• Minor changes to some window titles.
• Fixed some problems accessing the help pages.
• Removed some redundant USE, PUBLIC, and INTRINSIC statements.
• Help pages updated for changes to file formats implemented at Version 3.15.Version 3.16
• Implemented second check on number of EOF modes to compare with number of available variables.
• Second check fixes occasional program crash.Version 3.15
• Fixed problem opening input files with no file extension.
• Station file format changed to require STATION, LATITUDE, and LONGITUDE keywords.
• Unreferenced file format changed to require NAME keyword, and to require variable names.
• Excel files saved as Text (Tab delimited) can be read as station and unreferenced datasets.Version 3.14
• Fixed occasional problem saving skill scores for gridded Y datasets.Version 3.13
• Corrected labeling of X homogeneous map series output file prompt.
• Supplied missing portion of save prompt for PCR project files.
• Fixed problem trapping memory allocation errors when making forecast.Version 3.12
• Corrected variance-adjusted forecast values.
• Disabled cross-validation window length of 0.
• Set default first year of interest in forecast file to maximum of first
  year available, and first year of interest of X.
• Prompts modified for saving changed project file settings.
• Error message implemented for varying months in gridded datasets.
• Number of years read successfully is now indicated when there is an error reading input data.
• Training period is indicated in results window when constructing the model.
• Window titles changed to indicate Input nd Results Windows.
• Minor editorial modifications to help pages.Version 3.11
• Fixed occasional program crash when viewing validation results.Version 3.10
• Fixed problem displaying EOF loadings of unreferenced data.
• Largest absolute EOF loadings forced to be positive.
• Initial focus provided to default file structure to prevent incorrect selection after enter.
• Simplified assignment of file unit numbers.Version 3.09
• Results window closed after errors.
• Minor improvements to smoothness of advance of progress meter.
• Windows closed properly after errors.
• Modified nearest neighbour missing value estimation routine so as not to use estimated values when identifying nearest neighbour.
• Fixed occasional program crash when optimizing CCA setting
• Simplified handling of insufficient memory when making forecasts.
• Simplified use of property sheet handles.
• Missing INTENT declarations supplied.Version 3.08
• New goodness index implemented (see help pages for details.
• Added option to save input data (in case estimated missing values are required).
• Results window opened immediately to show progress in reading data, and to allow earlier termination.
• Fixed problem calculating number of gridpoints in south-north gridded data.
• Fixed problems in forecasting with south-north gridded data.
• Fixed some problems saving gridded results.
• Fixed problem setting missing value estimation method for Y data.
• Minor modification made to tercile definition function to handle very small smaple sizes.
• Slight improvements in efficiency of drawing forecast graph.
• Minor modifications to handling termination of analyses given insufficient memory.
• Minor changes in format of some console messages.
• Corrected incorrect labelling of X eigenvalues output file prompt.
• Fixed problem calculating EOFs of cross-products matrix.
• Fixed program crash with PCR when variance of cross-validation sub-sample is zero.
• Simplified calling of data output routines.
• Memory allocation modularised, and safer deallocation implemented.
• Data output routines incorporated into data_io module.
• Some variables in arrays module moved to analysis module.
• Removal of some redundant IMPLICIT statements.
• Scree plot routines modularized.
• Help files updated:CPT_use5.htm – description of new oodness index.Version 3.07
• Minor revisions made to tercile definition function.
• Simplified handling of some memory allocation problem warnings.Version 3.06
• Fixed problem drawing skill maps for gridded Y data.
• Fixed overlay of CCA scores.
• Added option to view and save retroactive residuals and scatter plots.
• Added additional accelerator keys to results window menu items.
• Scatter Plots menu item moved from Graphics to Validation~Cross-validated.
• Graphics menu item renamed depending on analysis method.
• Other Tools sub-menu items renamed.
• Fixed occasional problems inheriting domains.
• Fixed occasional problems setting domain limits with station data.
• Fixed occasional problems reading south-north oriented gridded data sets.
• Fixed problem drawing maps of gridded data that is not global and region is split.
• Eliminated preference for an increasing or decreasing latitude ordering.
• New checks and error messages implemented for domain settings.
• Approximate geographical limits of data indicated on domain selection window.
• No replacement of missing values option included.
• New meaning for 0% maximum missing values: stations/grids with any missing values are excluded.
• Forced selection of one missing value replacement option.
• Vertical lines on graphs set as default.
• Hour-glass cursor indicated while JPEG files are saving.
• New warning issued if more than one month/season per year is suspected in input files.
• New warning issued if project file settings are changed and an attempt is made to close the file.
• Results window generation modularized.
• Further modularization of map drawing routines.
• Help pages converted to full html, and are opened in the default browser.
• Help pages updated for new features.
• CPT enabled when Help Pages are open.Version 3.05
• Prevented program from crashing when there is a problem reading in forecast data.
• Fixed problems arising on second viewing of forecast results.
• Fixed an occasional program crash and other problems when stations are outside of domain.
• Fixed failure to allow line-breaks in station input files.
• Slight changes to some error messages on reading input files.
• Forced selection of one input data structure.
• Accelerator keys added for data structure selection.
• Some improvements in efficiency of calculation of skill scores for skill maps.
• Corrected mapping of ROC areas for the above-normal category.
• Fixed occasional problems of maps being drawn horizontally striped.
• Fixed problem of missing map shading where input longitudes wrap around.
• Fixed tercile indicators on graphs when data is rescaled.
• Fixed inaccuracies in ROC area calculations and graphs.
• Improved formatting of scaling label on axes.
• Improved visibility of crosses on station maps.
• Added option to include crosses on graphs.
• Added option to include vertical lines on graphs.
• Added regression line to scatter plot.
• Opening of project files modularized.
• Opening of input files modularized.
• Graphics drawing modularized.
• Calculation of validation statistics modularized.
• Contingency table calculations modularized.
• Most support routines included in modules.
• Minor enhancements in efficiency of reading station data.
• Simplified memory allocation for reading data.
• Some redundant variables removed.
• Changed assumed-sized arrays to assumed-shaped arrays, and provided explicit interfaces for most routines.Version 3.04
• Added option to replace missing values with median.
• Added option to replace missing values by regression using nearest neighbour.
• Updated help pages to describe new missing value options.
• Fixed occasional failure to replace missing values in forecast data.
• Fixed input screen formatting problem for some screen resolutions when switching analysis methods after a calculation.
• Disabled input screen reactivation after opening output file windows.
• Supplied some missing use statements in interface blocks.
• Some renaming of variables.Version 3.03
• EOF and CCA loadings of unreferenced data now plotted as correlations on bar charts.
• Fixed problem closing CPT when project file is unsuccessfully opened from Introductory window.
• Fixed problem displaying CCA and PCR project files when project file is unsuccessfully opened from Introductory window.
• Fixed incorrect indication of full training period when using retroactive option with PCR.
• Fixed some problems with multiple file extensions for output files.
• Output file extensions for unformatted files change to .dat.
• Output file description added to derived type, which changes some window text in places.
• General improvements in output formats.
• Implemented option to save real-time forecasts.
• Help pages updated to explain how to save real-time forecasts.
• Streamlined output file routines, and reorganised iofiles and data_io modules.
• Graphics output file name can now be set, and warning is issued if file exists.
• Previous directory is remembered when using browse buttons.
• Help pages updated to explain output file extensions, and for JPEG output.
• Save Y eigenvalues scree plot removed for PCR.
• Implemented rescaling of data for plots when values are either large or small.
• Made minor adjustments to algorithm for identifying selected skill measure.
• Simplified save forecast image menu prompt.
• Improved save skill map data dialogue window.
• Adjusted default record length of skill scores output file.
• Safer memory deallocation implemented.
• Realigned longitudes array implemented to simplify all longitude references for gridded data.
• Some redundant checks removed.
• Some internal renaming of arrays.
• Some changes to window handles and removal of redundant control variables.
• Some corrections made to subroutine argument intents.
• Changed DOUBLE PRECISION to REAL with declared KIND(1.0d0).
• Some redundant INTRINSIC declarations deleted.
• Supplied missing USE statements in a few INTERFACE blocks.Version 3.02
• Options for missing values included.
• Help pages updated for missing value option.
• Option to set default domain included.
• Precision of values on labelbar made variable.
• Some causes of uneven spacing of horizontal colour-bar labels and of longitude labels fixed.
• Occcasional problem of overlapping latitude labels fixed.
• EOF/CCA mode numbers added to loadings and temporal scores graphs.
• Canonical correlation added to CCA modes graphics window.
• Colour scales on hit score maps changed.
• Internal changes made to some contour-setting for graphics.
• Prompt for domain automatically issued after specifying number of gridpoints or stations.
• Output file prompts split into property sheets.
• Problem with progress bar when no output files are specified fixed.
• Format of output of cross-validated and retroactive predictions modified.
• New CPT.ini file required.
• Check included and advisory issued for old CPT.ini files.
• Project File formats updated to include missing value information.
• Check included and advisory issued for old Project Files.
• Problem opening project file with unset input files fixed.
• Radio button prompt introduced for data file structure.
• Fixed problem identifying first year of data in forecast file for station data.
• Fixed some problems caused by external files being left open after being read unsuccessfully.
• Input file selection routines modularized.
• Old input files retained if new input file selection is cancelled.
• Default first year of interest retained when input file is selected.
• Console window caption removed.
• Confirmation prompts added to forecast file window.
• Close menu item removed from forecast file window.
• Help menu item added to output files window.
• Domain and grid derived-types introduced to simplify programming.
• Data structure flag added to input file derived type.
• Redundant first year of data in file default setting prompts removed.
• Redundant window handle settings removed.
• Slight adjustments made to contingency table formats.
• Minimum disk space requirement details in Help Pages updated.
• Other minor revisions to Help Pages.Version 3.01
• Forecast maps and bar charts implemented.
• Skill maps and bar charts can be saved.
• Addition of option for station dataset as input data structure.
• Skill maps drawn for station datasets.
• “Number of gridpoints” and “Number of series” prompts changed dynamically to reflect data structure.
• “Series” prompts changed to reflect data structure.
• Automatic prompt for number of series when ungridded format is selected replaces Input Screen prompt.
• Minor performance enhancements in construction and update of Input Screen.
• Other minor performance enhancements.
• Some occasional memory allocation problems when opening project files fixed.
• Some additional checks for correct input file formats implemented.
• Items on Input Screen reorganized.
• Some problems with cursor when warning and error messages issued resolved.
• Fixed problem with cursor when no output files are specified.
• Fixed problem with indicating latitudes between 0 and 10S.
• Fixed problem with formatting of some windows at low screen resolutions.
• Help pages updated for new features.
• Note on missing values added to the Input Datasets Help Page.
• Other minor editorial changes made to Help Pages.Version 2.32
• Warning message issued if problem with reading country boundaries rather than program crashing.
• Error message issued if problem opening or reading CPT.ini.Version 2.31
• Grid references shown for gridded Y data on verification, contingency table, and scatter plot screens.
• Column headers added to formatted eigenvalues output files.
• Formatted output of EOF loadings changed for gridded data, with latitudes and longitudes included in output.
• Output routines generalized.
• Some editorial changes made to Help Files.Version 2.30
• Fixed problem with map shading when data domain is sub-global.
• Skill maps enlarged.
• Fixed problem with Y data settings in Project Files.
• Ocassional problems in setting northern domain limit for sub-global grids fixed.
• Some problems with hour-glass cursor after calculations are aborted fixed.
• Small changes to the way aborted calculations are handled.
• Help page on Project Files added.
• Some dead help page links fixed.Version 2.29
• Option to open project file from title screen added.
• Hour glass cursor added for when program is busy.
• Skill maps and histograms implemented.
• Verification menu items renamed to Validation, and sub-menus modified to inclde the new maps.
• Window title for domain selection clarified.
• Other changes to some window titles.
• Latitude-longitude lines reset to dotted format.
• Corrections made to western longitude labels.
• Corrections made to map shading when map domain exceeds data domain.
• Colour scale centred correctly when number of contours is less than maximum.
• Scaling on colour-bar corrected and indicated.
• Other small adjustments made to colour-bar.
• Small crosses added to scree plots to indicate data points.
• Input file names cancelled if unsuccessfully read.
• Action menu item disabled when input file is closed.
• Updates made to Help-About.
• Comments on JPEG quality included in the Help pages.
• Acknowledgements added to the Help pages.
• Changes made to Help pages because of new features.
• Changes made to the mapping subroutine to allow for greater flexibility in calling.Version 2.28
• Coordinate labels added to maps.
• Colour bar added to maps.
• Map titles repositioned on wide maps.
• All EOF and CCA loadings on maps are now shown as correlations with the corresponding time scores.
• Line labels added to ROC diagrams.
• Added ability to save graphics as JPEG files using right mouse button.
• CPT.INI modified to store default output directory for JPEG files.
• Gridded input files can be ordered north-south or south-north.
• Corresponding changes made to help pages.
• Help page structure map updated.
• Advisory message added for successful saving of project file.Version 2.27
• Correction made for setting default number of Y series.
• Comment on bimodal forecast probabilities added to help pages.
• Seamless adjustments to some Fortran IMPLICIT statements and INTERFACE blocks.Version 2.26
• Improved data input error checking.
• Improved memory management.
• Forced reset of forecast file when X input file is respecified.
• Errors in categorical verification measures, including ROC graphs, fixed.
• Fixed errors and occasional memory violations when typing in series number.Version 2.25Fixed problems with latitudes for gridded files when data runs to next line.Version 2.24
• Problems opening gridded y files when using an old project file fixed.
• Occasional premature completion of CCA progress meter fixed.
• Occasional stalling of progress meter fixed.
• Occasional errors with missing grids and series fixed.
• Correction made to CPT.INI to fix problems accessing PROJECTS subdirectory.
• Error trap included for non-consecutive years in gridded input files.Version 2.23
• Decreased memory requirements for producing forecasts
• Additional error traps implemented for large memory problems to prevent crashes
• Minor corrections to the calculated prediction error variance
• Corrections to occasional errors with y-axis ranges
• Minor performance enhancements
• Some problems in automatically accessing the project files directory fixed
• Version 2.21
• Inclusion of customise option for setting some defaults
• Additional help pages included
• Some enhancements to graphics
• Various minor bug fixes and performance enhancements