Okay, yes, that makes sense. Then I can take each of the 3 groups and do the same thing to randomize them to 5 equal groups. Thank you! ... View more

Thank you for the reply. I understand how to choose it, I just can't figure out how to actually locate it. I don't see, in any of the resulting datasets from %GLIMMROC or on the graph, an indication of the value of the TNM at the sens/spec level I'm after. ... View more

If you treat this as a problem of testing agreement among 5 raters, you can use the multiple rater kappa provided by the MAGREE macro:    http://support.sas.com/kb/25006 ... View more

Another option is to show the line for all points and the error bars only at your desired points as in : data allDatGraph; set alldat; if mod(timedays,50)=0 then alkPhosSpec=alkPhos; run; ods graphics on; proc sgplot data=allDatGraph;   vline timedays/response=alkphos           stat=mean;   vline timedays/response=alkphosSpec           stat=mean           limits=both           limitstat=clm           break markers datalabel;   xaxis fitpolicy=thin; run; PG ... View more

or NEEDLE plots. ... View more