topic Re: SAS EM generate different results? in SAS Data Science

SAS EM generate different results?

KenZ — Wed, 08 Aug 2012 16:33:08 GMT

I am using SAS EM for a logistic regression prediction. I found that sometimes I ran the nodes under the same conditions, but the result can be different (selection of variables ....).

I used stepwise iteration in the logistic regression, and imputed and transformed variables before running the regression node.

Your suggestion will be appreciated!

Re: SAS EM generate different results?

JasonXin — Sun, 12 Aug 2012 12:01:30 GMT

Could you indicate EM version, OS (Windows....), and possibly share the xml diagram file? Jason Xin

Re: SAS EM generate different results?

Saszealot — Tue, 28 Aug 2012 03:13:10 GMT

I had similar experience but with SEM 6.1 and 7.1. They generate different outputs.

Re: SAS EM generate different results?

Sam_zirak — Fri, 15 Apr 2016 17:54:52 GMT

If you have partitioned your dataset, you might get different results anytime you run your nodes if the "Rerun" feature on your "Input data" node has been set to "Yes". The reason is that the partition node splits your dataset into "Training" and "Validation" randomly which could end up in getting slightly different results.

Sam