I have count data for each NJ county and for each year (2007-2013). I am trying to run a genmod procedure with offset for poisson regression. Using the offset as the log of the population. The algorithm converges but I end up with 2 reference groups for county (Warren & Sussex). The attached contains the data and the model output. I considered the possibility that a repeated statement might be necessary but not sure the data supports it's use. Any assistance would be appreciated. Using SAS 9.3 proc genmod data=model2; class county year; model countsd=nonwhite county year/dist=poisson link=log offset=logpop type3; run;
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