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Re: st: error message in biprobit


From   "Gandelman, Nestor" <gandelman@ort.edu.uy>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: error message in biprobit
Date   Fri, 26 Nov 2004 13:15:51 -0300

Thanks again.

"Marc F. Bellemare" ha escrito:

> Hi Nestor:
>
> Actually, if you type -help biprobit-, you can see that -biprobit-
> accommodates the maximize options (generally used with the -ml- commands),
> so that you can probably specify new starting values. Sorry for not having
> checked that when I answered your question. From my very limited
> experience, however, the only time I had the "unfeasible starting values"
> message, it was because there was something I had specified incorrectly.
>
> Marc
>
> At 10:40 AM 11/26/2004 -0300, you wrote:
> >That's what I thought but I wondered if there is a way to change the initial
> >values used by biprobit (it doesn't seem to be such an option in the command).
> >I guess from you answer that there is not.
> >Many thanks, Nestor
> >
> >"Marc F. Bellemare" ha escrito:
> >
> > > The problem is that the initial values that Stata plugs into your
> > > likelihood function are not feasible. My hunch is that you'll have to use
> > > the -ml- set of commands and program a bivariate probit yourself so as to
> > > be able to tweak the algorithm so that (i) it has feasible initial values;
> > > and (ii) converges.
> > >
> > > I hope this helps,
> > >
> > > Marc
> > >
> > > At 05:58 PM 11/25/2004 -0300, you wrote:
> > > >Dear statlisters,
> > > >I'm estimating several bivariate probit model using the biprobit
> > > >command.
> > > >In some of them I recieve the follwing error message:
> > > >
> > > >"initial values not feasible"
> > > >
> > > >Does this mean that I can't estimate those models?
> > > >Does anybody know how this can be solved?
> > > >
> > > >Thanks,
> > > >                         Nestor
> > > >
> > > >*
> > > >*   For searches and help try:
> > > >*   http://www.stata.com/support/faqs/res/findit.html
> > > >*   http://www.stata.com/support/statalist/faq
> > > >*   http://www.ats.ucla.edu/stat/stata/
> > >
> > > __________
> > > Marc F. Bellemare
> > > Ph.D. Candidate
> > > Department of Applied Economics and Management
> > > Cornell University
> > > Ithaca, NY 14853-7801
> > > http://www.people.cornell.edu/pages/mfb24
> > >
> > > *
> > > *   For searches and help try:
> > > *   http://www.stata.com/support/faqs/res/findit.html
> > > *   http://www.stata.com/support/statalist/faq
> > > *   http://www.ats.ucla.edu/stat/stata/
> >
> >*
> >*   For searches and help try:
> >*   http://www.stata.com/support/faqs/res/findit.html
> >*   http://www.stata.com/support/statalist/faq
> >*   http://www.ats.ucla.edu/stat/stata/
>
> __________
> Marc F. Bellemare
> Ph.D. Candidate
> Department of Applied Economics and Management
> Cornell University
> Ithaca, NY 14853-7801
> http://www.people.cornell.edu/pages/mfb24
>
> *
> *   For searches and help try:
> *   http://www.stata.com/support/faqs/res/findit.html
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



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