I'm working on the Italian municipalities (8092) that I classified and grouped according to the types of area (pole, belt-intermediate, peripheral).
I need to map the boundaries given by the types of areas (class_comuni2) based on the municipality (pro_com): each type of area includes more municipalities.
With the proc gremove http://support.sas.com/documentation/cdl/en/graphref/63022/HTML/default/viewer.htm#gr25n02-ex.htm I should eliminate the boundaries of individual municipalities to get the boundaries of the types of areas.
The gremove proc and then the gmap proc, even if they do not give error, do not return the expected map.
I attach the syntax and the zipped db.
thanks