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Tip of the Day:March 15

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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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