Separate out the curve data you want to show in red into a new column.  Keep all the other curve data the same.  Then use one SERIES with GROUP and color set to grey to display all the curves.  Use another SERIES plot overlay (after the first) with this new column, color it red.     ... View more

Returning to this. This macro seems to do the trick.   %macro varfmt(dsn, vname) ; /*********************************************************************** Returns the format of the variable. (From a pre-existing data set). Example. data temp; v1=0; format v1 f10.5; output; run; data temp2; set temp; v2=0; * give v2 the same format as v1; format v2 %varfmt(temp,v1); run; proc print;run; *********************************************************************/ %local exist dsid varcnt rc ; %let exist = 0 ; %if not %sysfunc (exist (&dsn)) %then %do ; %put ERROR: Data set %upcase (&dsn) does not exist. ; %goto mexit ; %end ; %let dsid = %sysfunc (open (&dsn)) ; %let fmt = %sysfunc(varfmt(&dsid,%sysfunc(varnum(&dsid,&vname)))); %let rc = %sysfunc(close(&dsid)); &fmt %mexit: %mend varfmt; ... View more

In normal SAS statements you need to put quotes around literal values so that it knows you do not mean a variable name or other language token. In general to a macro quotes are just like any other character. So if you want to call the macro with the value of LB then that is what you would do. data want; set have; %mymacro(LB); run; ... View more

Thanks for explain, RW9. The POP or P.O.P seems like a setup for Clinical trial folder for SAS programmer.  Like a track sheet.  I do not know exactly what is that.  For sure it is not Population. Thanks, Abdu. ... View more