From: Pakcha Sharma on 7 Sep 2009 23:13 Hi all, I am trying to model a non-negative continuous variable, which is highly right skewed and has a lot of zero values (more than 30%), and analyse its association with other independent variables. I have tried PROC GENMOD with gamma distribution but the analyse drops all zero values from the analysis. I read it somewhere that I can fit a zero inflated gamma distribution. I have been trying to find a reference for that and a SAS procedure that can do it but have been unable to find. Could some one please email me the SAS procedure and a reference or point me to the right direction. Thanks.
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