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Re: st: zinb & testnl - testing nonlinear results


From   Maarten Buis <maartenlbuis@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: zinb & testnl - testing nonlinear results
Date   Tue, 12 Jul 2011 20:22:37 +0200

If you want to refer to the logit part than you want the latter
results. You can see how parameters are called by adding the
-coeflegend- option to your -zinb- command.

Hope this helps,
Maarten

On Tue, Jul 12, 2011 at 7:26 PM, Alicia Doyle Lynch <alicia.doyle@bc.edu> wrote:
> I am using zero inflated negative binomial models with zinb and using testnl afterwards hoping to test the nonlinear (i.e. logit) portion of the model.  How I can make sure that I am actually testing the logit results rather than the linear results when using testnl?
>
> Here's what I have so far:
> zinb irinc2 musbn3 minor1 mwhitot2, inf(musbn3 minor1 mwhitot2)
> testnl _b[musbn3] = _b[mwhitot2]
>
> I've also tried (and got different results  for):
> testnl [inflate]_b[musbn3]=[inflate]_b[mwhitot2]
>
> *
> *   For searches and help try:
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> *   http://www.ats.ucla.edu/stat/stata/
>



-- 
--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany


http://www.maartenbuis.nl
--------------------------

*
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