Hi Paulo, Thanks a lot.
cheers milton 2011/7/17 Paulo van Breugel <p.vanbreu...@gmail.com> > ** > v.rast.stats (menu: Vector-Update area attribute from raster) will > calculate n, min, max, range, mean, stddev, variance, coeff_var, sum and > optionally the 1st quartile, median, 3rd quartile, and given percentile. > Columns will be created on the fly, you only have to give the 'base name' of > the columns. I.e., no need to create a column yourself. > > > > On 07/16/2011 10:14 PM, Milton Cezar Ribeiro wrote: > > BTW, > > my vector maps have polygons. > > milton > > 2011/7/16 Milton Cezar Ribeiro <miltinho.astrona...@gmail.com> > >> Dear all, >> >> I have a raster map with continuous values, and need to extract some stats >> (like mean, std etc) assigning these "zonal" values as a vector column. >> I just added the empty columns on the my vector map using : >> v.db.addcol map=frag_ts columns="FLOW_STD DOUBLE PRECISION" >> >> How can I do this on grass? >> >> cheers >> >> milton >> > > > _______________________________________________ > grass-user mailing > listgrass-user@lists.osgeo.orghttp://lists.osgeo.org/mailman/listinfo/grass-user > > > > _______________________________________________ > grass-user mailing list > grass-user@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/grass-user > >
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