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Re: st: Multinomial probit model error


From   Humnath Bhandari <hnbgulmi@yahoo.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Multinomial probit model error
Date   Sat, 21 Jun 2008 07:06:57 -0700 (PDT)

Thank you Maarten and others who responded to my problem.
I followed Marteen suggestion to update STATA by typing "update all". 
After update, I run the multinominal probit model and It works well. It did not show any error this time. 
I greatly appreciate your help.
Humnath


----- Original Message ----
> From: Maarten buis <maartenbuis@yahoo.co..uk>
> To: statalist@hsphsun2.harvard.edu
> Sent: Saturday, June 21, 2008 7:38:02 PM
> Subject: Re: st: Multinomial probit model error
> 
> > Zitat von Humnath Bhandari :
> > > I run multinomial probit regression model with this three
> categories
> > > of poverty as dependent variable and sociodemographic factors as  
> > > independent variable. I use STATA 9.2 to run this program but it  
> > > gave me the following error:
> > >                  
> > > :  3499  _mprobit_weights_roots_laguerre() not found
> 
> Sounds like you only partially updated your Stata. Type withing Stata:
> -update all- and see if the problem disappears.
> 
> --- Martin Weiss wrote:
> > Not sure about the error, but have you considered using the  
> > multinomial logit results? Probit and logit usually give similar  
> > results, but I am not quite sure whether this rule carries over to
> > the multinomial case...
> 
> Traditionally multinomial probits are used to relieve the IIA
> assumption, however as the implementation in official Stata does not
> allow for correlation between the error terms this is not applicable
> here. So you are just as well off (or as bad off) with -mlogit-. If the
> aim is to avoid IIA, you should look at -findit mvprobit-.
> 
> Hope this helps,
> Maarten
> 
> -----------------------------------------
> Maarten L. Buis
> Department of Social Research Methodology
> Vrije Universiteit Amsterdam
> Boelelaan 1081
> 1081 HV Amsterdam
> The Netherlands
> 
> visiting address:
> Buitenveldertselaan 3 (Metropolitan), room Z434
> 
> +31 20 5986715
> 
> http://home.fsw.vu.nl/m.buis/
> -----------------------------------------
> 
> 
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