Hi,

I want to compare probit coefficients across groups with the method proposed by Allison (1999). The method corrects for unobserved heterogeneity in binary regression models. I can find only a SAS macro on the author's homepage (http://www.ssc.upenn.edu/~allison/glogit.sas). Has anyone of you ever implemented this method in R or knows how to integrate the macro?

Thank you very very much for your kind help and any tips!

Marius

__________________________________________
Marius Osterfeld
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