The GMAP Procedure

Example 1: Producing a Simple Block Map

Procedure features:

ID statement

BLOCK statement option:

	BLOCKSIZE=
	RELZERO

Sample library member:

GMPSIMPL

[Simple Block Map]

This example produces a block map that shows population of countries in Asia. Since the DISCRETE option is not used, the response variable is assumed to have a continuous range of values. Because neither the LEVELS= nor MIDPOINTS= option is used, the GMAP procedure selects a number of levels based on the number of map areas and then calculates the appropriate response levels.

goptions reset=all border;

title1 "Population in Asia";
footnote1 j=r "GMPSIMPL";

proc gmap data=sashelp.demographics(where=(cont=95))
          map=maps.asia all;
   id id;
   block pop / blocksize=1 relzero;
run;
quit;

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