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Date:         Tue, 4 Jul 2006 05:14:14 -0400
Reply-To:     millerjm@UFL.EDU
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Jeff Miller <millerjm@UFL.EDU>
Subject:      Negative binomial hurdle
Content-Type: text/plain; charset="us-ascii"

Does anyone know how to run a negative binomial hurdle model?

Since the likelihoods are additive between parts, I would think it to be just a logit for the zeros and a negative binomial for the positives;

However, these results are diverging from those of other software and really aren't that sensible.

I'm trying it in NLMIXED.

Has anyone tried this?

Thank you,

Jeff


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