[GRASS-user] sum one raster map conditional on another raster map
glynn at gclements.plus.com
Thu Mar 18 06:36:08 EDT 2010
stephen sefick wrote:
> I would like to sum all of the positive values of one raster map
> (NDVI) based on a raster containing many watersheds that have values
> 1-22. Is there a way to do this in GRASS? Or a way to export this
> information to R and get the same results. I hope this is clear
r.statistics method=sum ...
This will round the cover values to integers, so you might need to
scale them first.
Glynn Clements <glynn at gclements.plus.com>
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