NEWS.md

In InterpolateR: A Comprehensive Toolkit for Fast and Efficient Spatial Interpolation

Version 1.4-1 (Development)

New Features

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• The entire Cressman algorithm code has been refactored, which has accelerated its execution speed.
• The “n_round” functionality has been added to the Cressman algorithm, which allows the final layers to be rounded.

Bug Fixed

- An error that occurred if the “Z” column was not passed in BD_Coords when it was not mandatory has been corrected.

• The entire Cressman algorithm code has been refactored, which has accelerated its execution speed.
• The “n_round” functionality has been added to the Cressman algorithm, which allows the final layers to be rounded.
• The IDW algorithm has been redesigned, ensuring faster execution time and resource consumption.
• A new parameter called “mask” has been added to the IDW algorithm, allowing the final file to be cropped and masked based on the input polygon.
• The Altitude “Z” parameter is no longer required when running IDW or Cressman.
• The ordinary kriging method has been added.

Bug Fixed

• An error that occurred if the “Z” column was not passed in BD_Coords when it was not mandatory has been corrected.
• Typos in the IDW documentation have been corrected.

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Version 1.3-4 (Development)

New Features

• We added new goodness-of-fit metrics, including: Mean Squared Error (MSE), pearson's Correlation, Coefficient of Determination (R-squared)
• We performed a refactoring of the project for its future maintenance and addition of new functionalities.
• We have removed hydroGOF dependencies for the calculation of goodness-of-fit metrics. The metrics will now be hosted as internal functions.
• We have added a new function to create a file similar to BD_Obs from several csv files.
• We have restructured the RFmerge logic, reducing the execution time by 50%.
• We have restructured the RFplus logic, reducing the execution time by 50%.
• We have removed the RFplus validation that prevented you from limiting the Date to be only of “Date”, “IDate” or “Posixct” format. Now, you can enter any format for the date.
• We add the function “create_data” to create the BD_Obs file from multiple individual files.

Bug Fixed

• Fixed several bugs within the RFmerge tests
• We have fixed a bug in RFplus and RFmerge that caused the algorithm not to compile when the layer “DEM” was entered with a name other than “DEM”. After fixing this bug, the user will be able to set any name for this layer.
• We have corrected bugs in the RFmerge and RFplus algorithms that prevented interpolations to a scale other than daily. Now, these algorithms allow interpolation to any time scale (from minutes) to years or other time scales.
• We have fixed a bug in the IDW and Cressman algorithm, which caused BD_Obs data to be transformed to daily format, regardless of the scale entered. This bug did not allow interpolations to hourly or smaller scales.

Version 1.2-0 (Development)

New Features

• in the validation mode, the 'mod_validation' parameter has been removed, as it was unnecessary. Now, if the 'stat_validation' parameter is entered, it will validate with the stations entered. If 'stat_validation' is NULL a random validation will be used.
• We have added the option to manually insert stations for validation, option 'stat_validation', when this parameter is entered it will be used to validate the stations entered by the user, otherwise when stat_validation = NULL, the validation will be performed randomly.
• We have optimized the RFmerge algorithm and its validation algorithm has been connected to 'validation_module'.
• We have optimized the RFplus algorithm and its validation algorithm has been connected to 'validation_module'.
• We have created the 'validation_module' which will contain all the logic for point to pixel validation. All integration methods that require validation will be connected to this module.
• Add a new interpolation method. RFplus proposed by Landi et al. (2025).
• Add a new interpolation method. RFmerge proposed by Baez-Villanueva et al. (2020).
• Add interpolation method Inverse Distance Weighted Interpolation (IDW).

Bug Fixed

• An error has been corrected when manually selecting stations for validation, since if the training was not different from 1 the validation was not performed.
• We have corrected a bug in the validation methods, when the 'random' method was set, the IDs did not match each station in situ. We have made a new approach in the allocation, correcting this problem.

InterpolateR documentation built on Sept. 9, 2025, 5:59 p.m.