I'm working in an OpenVMS batch environment which is still running SAS v8.2. In this version, PROC GENMOD does have a CLASS statement, but this statement doesn't have any options. So I can't specify reference values for the covariates with, for example, (ref='a'). I've been unable to find anything in the v8 documentation explaining what SAS uses for reference values for binary, continuous, or categorical covariates. Does anyone know?
Before you suggest it, upgrading is not an option. Also, I'm not a statistician, I just play one at work. So go easy on the jargon.
Thanks!
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