Programming the statistical procedures from SAS

Exact Poisson Regression with Robust Variance in SAS

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Frequent Learner
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Exact Poisson Regression with Robust Variance in SAS

Is it possible to fit exact Poisson regression with robust variance in SAS?

Super User
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Re: Exact Poisson Regression with Robust Variance in SAS

PROC GENMOD can do Exact Poisson Ression, but not sure if it is Robust Variance.

Or Check RPOC GLIMMIX .

Esteemed Advisor
Posts: 5,532

Re: Exact Poisson Regression with Robust Variance in SAS

To me, robust and exact don't belong in the same sentence, but then, what do I know Smiley Happy? Genmod does exact Poisson regression. Countreg (in SAS/ETS) doesn't, but gives you more options to model the variance. Check the Conway-Maxwell-Poisson distribution option.

PG
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