st: grcompare is available from SSC

[Jun Xu <mystata@hotmail.com>]

Thanks a lot to Kit Baum, a new program -grcompare- (as an on-going project) is now available from SSC.  This is a Stata module to make group comparisons in binary regression models using alternative measures, including
      
      gradip: average difference in predicted probabilities over a range
      grdiame:difference in group averaged marginal effects
      grdidip:difference in difference in predicted probabilities
      grdigap:difference in group averaged predicted probabilities
      grmarg: (local) marginal effects and difference in marginal effects

      For these programs to run well, you need to install SPost first as the grcompare module use some low utility programs from SPost (net search SPost) for Stata 9 (spost9_ado).  While installing SPost, you need to be aware that there could be variations across different versions. More recent versions of SPost may work well with grcompare, but the author of grcompare has not systematically tested yet.  


If you are interested in technical details, please send an email to jxu@bsu.edu for a methods paper that covers these measures and their statistical inferences.

Jun


Jun Xu, PhD
Assistant Professor
Department of Sociology
Ball State University
Muncie, IN 47306
Email: jxu@bsu.edu

 		 	   		  
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