help needed with legends disapeared when using proc sgpanel to generate stacked bar chart

[jadet]

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 ;
  colaxis display=(nolabel);
  rowaxis grid;
keylegend / title="Type" position=right across=1;
  format visit1 vs.;
  run;

[PeterClemmensen]

Can you post your data or some of it? 

And what your plot looks like now?

[jadet]

here are dataset and the output graph without legend, thank you!

[Jay54 · Accepted solution]

If you have too many groups, try increasing the LEGENDAREAMAX on ODS GRAPHICS statement.

http://go.documentation.sas.com/?docsetId=odsug&docsetTarget=p0kroq43yu0lspn16hk1u4c65lti.htm&docset...

[jadet]

thank you, Sanjay_SAS, it worked!