So there are two separate errors. The first is your use of the SQL AVG summary function. SQL summary functions need SQL expressions as arguments, and in SQL, variables must be separated by colons instead of spaces (as in a data step). I also found that avg is only available for vertical use (one column over several records), for horizontal averaging (several columns in one record) you should use the mean() function. So it should be mean(Height,CMDS,CBSDL,CBSDS,CBSDRNharvest,SRNumber,SRMass,FSRYield,Groundbiomass,TBMass,Hindex,Dmcontent,BCarotene,PPD1w,PPD2w) to make it syntactically correct. The second error is the invocation of the macro %DialAnalFixModel, which is obviously not known to SAS at this stage. Make sure that a proper %include for the file where this macro is stored is in your program, or get the macro definition text and copy it into your program.   ... View more