Dear list, I would like to use r.mapcalc in order to compare 2 different resolution floating-point raster (A = 1km and B = 100 m) and to calculate some statistics on the finest resolution map ( so g.region res=100)
As the two layers have different resolution and origin, some doubts arise : does r.mapcalc use *nearest neighbour* to perform calculation? is a resample using *r.resamp.interp* (bilinear or cubist) suggested/needed before running r.mapcalc? arcgis manual about map argebra says: "For the floating-point input rasters of different resolution it is recommended to RESAMPLE all the data using BILINEAR interpolation or CUBIC convolution before running Merge. Otherwise, the Merge function will automatically resample the rasters using NEAREST neighbor (which is not appropriate for the continuous type of data) I was not able to find this kind of recommendation in mapcalc help or wiki page ... Am I missing something? thanks Enrico
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