[Limdep Nlogit List] Limdep Q

William Greene wgreene at stern.nyu.edu
Thu Feb 11 06:00:46 EST 2010


John. You need to use a random parameters formulation. 
I will show you more in a little while.
/Bill Greene

----- Original Message -----
From: "John C. Whitehead" <john.c.whitehead at gmail.com>
To: "Limdep and Nlogit Mailing List" <limdep at limdep.itls.usyd.edu.au>
Sent: Wednesday, February 10, 2010 1:59:03 PM GMT -05:00 Colombia
Subject: Re: [Limdep Nlogit List] Limdep Q

Limdep mailing list,

Thanks for the two responses.

Adding the ZIP command doesn't change my random effects Poisson results.
However, without the Pds=x command I get a ZIP model instead of a regular
Poisson.

I'm using Limdep 9.0. Any ideas?

THanks,

John W.

On Wed, Feb 10, 2010 at 1:41 PM, Leif Anderson <Leif.Anderson at noaa.gov>wrote:

> John,
>
> Try
>
> POISSON
> ;Lhs=
> ;Rhs=
> ;Pds= (panel specification)
> ;ZIP$
>
> You could also add ;Rh2= if you want to specify the list of variables in
> the zero inflation probability.
>
> Let me know if that doesn't answer your question.
>
> Cheers,
>
> Leif Anderson
> leif.anderson at noaa.gov
>
>
> On Wed, Feb 10, 2010 at 10:10 AM, John C. Whitehead <
> john.c.whitehead at gmail.com> wrote:
> > Hi Folks,
> >
> > I'm stuck at home in a blizzard without my Limdep manual so forgive this
> > question. I'm trying to run a zero-inflated Poisson model with panel
> data.
> > The menu commands won't allow me to do this but I'm fairly sure that I
> can
> > do it with a command line? Any help with what that code might be?
> >
> > Thanks,
> >
> > John Whitehead
> > _______________________________________________
> > Limdep site list
> > Limdep at limdep.itls.usyd.edu.au
> > http://limdep.itls.usyd.edu.au
> >
>
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