Basic approach is to use If/Then statements in a data step to set a desired color /symbol based on the value of such a variable.
Then use Legend statements to provide description text to match the color /symbol you used.
You could use the value of the 'present' variable to control the color of the dots, such as ...
data coordinates; set coordinates;
length color $12;
xsys='2'; ysys='2'; hsys='3'; when='a';
function='pie'; rotate=360; size=1.0;
if present=0 then color='red';
else if present=1 then color='green';
run;
Thanks again. Really apreciate the help!
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