Actually, since you are using period as your class variable, PROC SUMMARY will essentially ignore "period" as one of the _numeric_ variables and will issue the following:
WARNING: Variable period already exists on file WORK.MYSUMMARY.
WARNING: The duplicate variables will not be included in the output data set of the output statement number 1.
If your original is doing most of what you want all you actually want to do is ignore the variable then drop it from analysis:
proc summary data=mydata (drop=period) nvar;
Actually, since you are using period as your class variable, PROC SUMMARY will essentially ignore "period" as one of the _numeric_ variables and will issue the following:
WARNING: Variable period already exists on file WORK.MYSUMMARY.
WARNING: The duplicate variables will not be included in the output data set of the output statement number 1.
April 27 – 30 | Gaylord Texan | Grapevine, Texas
Walk in ready to learn. Walk out ready to deliver. This is the data and AI conference you can't afford to miss.
Register now and lock in 2025 pricing—just $495!
Still thinking about your presentation idea? The submission deadline has been extended to Friday, Nov. 14, at 11:59 p.m. ET.
Learn how use the CAT functions in SAS to join values from multiple variables into a single value.
Find more tutorials on the SAS Users YouTube channel.
Ready to level-up your skills? Choose your own adventure.