Sticky-note

Create data set. REFLIB.IRIS2 uses a DATA step to read and modify the REFLIB.IRIS data set. The DATA step adds a variable that identifies the iris species. It also adds two additional variables that store shape and color values for each iris species. These shapes and colors will distinguish iris species in the plot.

data reflib.iris2;
   set reflib.iris;
   length species $12. colorval $8. shapeval $8.;
   if spec_no=1 then
      do;
         species='setosa';
         shapeval='club';
         colorval='blue';
      end;
   if spec_no=2 then
      do;
         species='versicolor';
         shapeval='diamond';
         colorval='red';
      end;
   if spec_no=3 then
      do;
         species='virginica';
         shapeval='spade';
         colorval='green';
      end;
run;