You can add a drill down to a graph by creating the hyperlink and using the HTML= option on the VBAR/HBAR/PLOT statement. Below is some sample code.

   data regsales;
     length Region State $ 8;
     format Sales dollar8.;
     input Region State Sales;
     length rpt $60; /* the HTML variable */

   /* assign HREF values to HTML variable */
   if Region='Central' then
      rpt='HREF="central.html#central"';
   else if Region='South' then
        rpt='HREF="south.html#south"';
   else if Region='West' then
        rpt='HREF="west.html#west"';

   datalines;
   West CA 13636
   West OR 18988
   West WA 14523
   Central IL 18038
   Central IN 13611
   Central OH 11084
   Central MI 19660
   South FL 14541
   South GA 19022
   ;
   run;
   goptions device=gif transparency noborder
            xpixels=450 ypixels=400;

   /* open the html destination for ODS output */
   ods html body='sales.html' ;

   /* create a chart that uses HTML variable */
   title1 'Company Sales';
   proc gchart data=regsales;
        vbar3d region / sumvar=sales
        patternid=midpoint
        html=rpt;
   run;
   quit;
   ods html close;

   /* open a body file for report */
   /* on central sales            */

   ods html body='central.html' ;
   title1 'Central Sales';
   proc print data=regsales noobs;
     var state sales;
     where region='Central';
   run;

   /* open a body file for report */
   /* on southern sales           */
   title1 'Southern Sales';
   ods html close;

   ods html body='south.html' ;
   proc print data=regsales noobs;
     var state sales;
     where region='South';
   run;

   /* open a body file for report */
   /* on western sales            */
   title1 'Western Sales';

   ods html close;

   ods html body='west.html' ;
   proc print data=regsales noobs;
     var state sales;
     where region='West';
   run;

See also the full PROC TEMPLATE FAQ and Concepts.

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