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st: Nested zip
From
Kris Anderson <[email protected]>
To
[email protected]
Subject
st: Nested zip
Date
Tue, 06 Dec 2011 09:13:18 -0800
Hi,
I am trying to model a count variable (lifetime use of drugs) nested in
schools. Given it's distribution, a zip model would be ideal (lots of
zeros). However, it seems Stata will run an xtmepoisson but not zip.
Does anyone know why?
Best,
Kris
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