Hello,
im searching a function to get the maximum, the minimum und the average
of the heights of a postal-district.
I`ve got the GTOPO30-Model and a shapefile with the geometrie of the
postal-districts.
I convertet the shapefile to rasterdata (the postal-codes are still
available). Now i want to use r.mapcalc to get the inforamtions from the
GTOPO30-Model.
I tried:
r.mapcalc newmap=if(postalmap=5570,max(GTOPO30),null())
But naturally it didn`t work.
The other functions i tried out didn`t work, too.
Does anybody have an idea how I could get the informations?
Thanks for your help.
Greeting
Maik