(This SAS geographical mapping functionality is, unfortunately,
not currently available in SAS University Edition and therefore SAS
Studio provided via this package. It is available via all packages
that include SAS/GRAPH, such as SAS 9.4 or SAS® Analytics Pro.)
The code for this example
is from the GMAP helpfiles in SAS/GRAPH 9.4 User’s Guide, and
is repeated in “Code10d GMAP Graph example” in the “Textbook
Materials” folder.