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Tip of the Day:March 15
sasCommunity Tip of the Day
When you have a categorical independent variable with more than two levels, you need a CLASS statement. The default coding in PROC GLM is dummy coding, in PROC LOGISTIC this is effect coding; this can be changed to reference cell (or dummy) coding with
/param = ref
in the CLASS statement.
Submitted by Peter L. Flom. Contact me at my Discussion Page.
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