NEWS.md

In varunayan: Download and Process 'ERA5', IMD, 'HadEX3' and 'CRU TS' Data

varunayan 0.4.0

• Initial CRAN submission.

• New analysis functions: load_india_boundaries(), spatial_mean(), compare(), cross_correlation(), anomaly(), seasonal_cycle(), peak_month(), seasonal_stat(), regrid() and dewpoint_from_relative_humidity().

• New ggplot2 plot functions: plot_map(), plot_series(), plot_dual_axis(), plot_ccf(), plot_scatter(), plot_bars() and plot_heatmap().
• era5ify_*() with frequency = "monthly" or "yearly" return totals for accumulated variables such as precipitation (they returned the mean daily value), and always have year (and month) columns.
• era5ify_point() snaps its download box to the 0.25 degree grid, so the nearest cell is a true ERA5 grid point.
• era5ify_*() with frequency = "yearly" download the ERA5 monthly-means product, as in the Python package. Before, they downloaded one value at 12:00 for each day.
• Shared test cases in parity check that R and Python give the same results.

varunayan documentation built on Oct. 30, 2026, 1:07 a.m.