Yes of course, r.statistics resp. r.statistics2 is doing the job. I just mixed up the the maps when I tried it the first time. Thanks Markus and Moritz!
On Thu, Nov 28, 2013 at 9:22 AM, Moritz Lennert < [email protected]> wrote: > On 26/11/13 16:28, Johannes Radinger wrote: > >> Hi, >> >> I'd like to calculate the sum of all raster values that belong to a >> certain group. This spatially organized group is also indicated by an >> overlay raster (same resolution). Finally I want to assign these sums to >> a new raster. That might sound slightly complicated but here an example: >> >> Asume following initial raster map A with random values like: >> >> 1-2-1-1-3-4-3-4-2-5-2-3 >> >> and an overlay raster indicating 3 groups: >> >> 1-1-1-1-2-2-2-2-3-3-3-3 >> >> the sums for the groups are: >> group 1 = 5 >> group 2 = 14 >> group 3= 12 >> >> so the final raster would be: >> >> 5-5-5-5-14-14-14-14-12-12-12-12 >> >> How can such a task be achieved in GRASS (7)? >> Any ideas? >> > > r.statistics ? > > Moritz >
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