I used proc sgpanel to generate stacked bar charts, the legend didn't show in graph, I think, it maybe due to too many PIDs (about 20).
here is the code, so how can I force SAS to print legend in the graph .
ods graphics on;
proc sgpanel data=allo1_20b;
title 'Top 20 Taxon by patient, ';
panelby pid / layout=columnlattice novarname noborder colheaderpos=bottom;
vbar visit1 / response=rab_a group=genus dataskin=gloss grouporder=data ;
keylegend / title="Type" position=right across=1;
format visit1 vs.;
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