Dear all,<br><br>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.<br>I just added the empty columns on the my vector map using :<br>
v.db.addcol map=frag_ts columns="FLOW_STD DOUBLE PRECISION"<br><br>How can I do this on grass?<br><br>cheers<br><br>milton<br>