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Re: st: why does stata creates missing values when running zinb model


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: why does stata creates missing values when running zinb model
Date   Wed, 19 Oct 2011 00:28:02 +0100

You fail to tell us anything whatsoever about your data (except that
the number of observations presumably is at least 3000) and you do not
tell us even the exact command you typed. This is quite contrary to
all the advice given to you in the FAQ and in particular repeated on
the list within the last 24 hours.

-set trace on- will show you where what you think is a problem occurs.
If the resulting log is long you may need to edit it for Statalist.
Otherwise why not liaise with Stata technical support directly? As
above, they will want to know about your dataset.

Nick

On Tue, Oct 18, 2011 at 11:20 PM, Ekaterina Hertog
<ekaterina.hertog@sociology.ox.ac.uk> wrote:
> Dear All,
> I am trying to run a zero inflated negative binominal zinb model in Stata 11
> and the first output Stata gives me is: 3000 missing values generated. I am
> not sure why this is happening and it sounds wrong, but I cannot find out
> what exactly this means and hence how to solve the underlying problem. Any
> advice will be greatly appreciated,
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