Since PROC LOGISTIC uses maximum likelihood methods, there is not a real MSE generated at any point. The nearest equivalent measure is the deviance, which can be obtained by using the SCALE=NONE option in the MODEL statement.
Steve Denham
2025 SAS Hackathon: There is still time!
Good news: We've extended SAS Hackathon registration until Sept. 12, so you still have time to be part of our biggest event yet – our five-year anniversary!