Re: st: RE: Stata 8 and 9

[Silvia Mendolia <silvia.mendolia@student.unsw.edu.au>]

Thank you very much! This explains the differences...

Thank you

Silvia


Scott Merryman wrote:

> The integration method has changed.  From -help whatsnew8to9- :
>
>
> "    2.  New features have been added to the maximum-likelihood estimators
> that do not have closed-form solutions and require numeric evaluation of the
> likelihood.  These estimators include xtlogit, xtprobit, xtpoisson,
> xtcloglog, xtintreg, and xttobit.
>
>         a.  The likelihood may now be approximated using adaptive
> Gauss-Hermite quadrature (the new default) or nonadaptive quadrature (the
> previous default).  Adaptive quadrature substantially increases the accuracy
> of the approximation, particularly on difficult problems such as data with
> large panel sizes or data with a large variance for the random effects."
>
> Scott
>
>
>
>  
>
> > -----Original Message-----
> > From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-
> > statalist@hsphsun2.harvard.edu] On Behalf Of Silvia Mendolia
> > Sent: Tuesday, November 07, 2006 5:49 PM
> > To: statalist@hsphsun2.harvard.edu
> > Subject: st: Stata 8 and 9
> >
> > Hello everybody,
> >
> > I know this seems a very silly question....
> >
> > I am running the same regression (xtprobit) on the same sample on 2
> > different computers. One has Stata 8 and the other has Stata 9.
> > Is it possible to have slightly different results?
> >
> > I thought it was impossible, but I can't find any other explanation...
> > The coefficient are differebt from the 3rd dec digit, but anyway...
> >
> > Any ideas?
> >
> > Thank you,
> >
> > Silvia
> >    
>
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>  

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