r.resamp.stats fills a grid cell (raster) matrix with aggregated values generated from a set of input layer data points.
Without the -w switch, the aggregate is computed over all of the input cells whose centers lie within the output cell.
With the -w switch, the aggregate uses the values from all input cells which intersect the output cell, weighted according to the proportion of the source cell which lies inside the output cell. This is slower, but produces a more accurate result.
Resampling modules (r.resample, r.resamp.stats, r.resamp.interp, r.resamp.rst) resample the map to match the current region settings.
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