The sample code on the Full Code tab uses the MAPS.AFRICA map data set with PROC GREMOVE to produce a new map data set that contains no internal boundaries.

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These sample files and code examples are provided by SAS Institute Inc. "as is" without warranty of any kind, either express or implied, including but not limited to the implied warranties of merchantability and fitness for a particular purpose. Recipients acknowledge and agree that SAS Institute shall not be liable for any damages whatsoever arising out of their use of this material. In addition, SAS Institute will provide no support for the materials contained herein.

The graphics output in the Results tab was produced using SAS® 9.2. Submitting the sample code with releases of SAS prior to SAS 9.2 might produce different results.

 /* Define the libref of MAPS if necessary */
*libname maps 'location-of-map-datasets';

 /* Set the graphics environment */
goptions reset=all cback=white border htitle=12pt htext=10pt;  

 /* Create data set NEWAF */
data newaf;
   set maps.africa;
   region=1;
run;

 /* Remove the unit areas from the AFRICA data set */
proc gremove data=newaf out=africa;
   by region;
   id id;
run;

 /* Add a title to the graph */
title1 'Africa before PROC GREMOVE';

 /* Define pattern characteristics */
pattern value=mempty r=50 color=black;

 /* Display the original map */
proc gmap map=maps.africa data=maps.africa all;
   id id;
   choro id / nolegend;
run;
quit;

 /* Define a new title for the map */
title1 'Africa after PROC GREMOVE';

 /* Display the map */
proc gmap data=africa map=africa;
   id region;
   choro region / nolegend;
run;
quit;

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These sample files and code examples are provided by SAS Institute Inc. "as is" without warranty of any kind, either express or implied, including but not limited to the implied warranties of merchantability and fitness for a particular purpose. Recipients acknowledge and agree that SAS Institute shall not be liable for any damages whatsoever arising out of their use of this material. In addition, SAS Institute will provide no support for the materials contained herein.

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