Re: st: Tobit with - cmp -

["Giacomo Zanello" <g.zanello@reading.ac.uk>]

Thanks Martin for pointing me out were I was wrong.

Maarten, lesson learnt: next time I will be more clear and include as much 
information as possible.





----- Original Message ----- 
From: "Maarten buis" <maartenbuis@yahoo.co.uk>
To: <statalist@hsphsun2.harvard.edu>
Sent: Thursday, August 19, 2010 2:21 PM
Subject: Re: st: Tobit with - cmp -


> --- On Thu, 19/8/10, Giacomo Zanello wrote:
> > I am learning to use the - cmp - command, but I cannot
> > replicate the tobit example in Roodman, 2009 with
> > Stata 11.1. Could someone confirm me if the following
> > codes - tobit - and - cmp - give the same output? When
> > I run them, I got different results.
> >
> > . cmp setup
> > . webuse laborsup, clear
> > . tobit fem_inc kids male_educ, ll
> > . cmp (fem_inc = kids male_educ), ind("cond(fem_inc,
> > $cmp_cont, $cmp_left)")
>
> It is in your own interest to give us the information
> we need to answer your question. The Statalist FAQ
> gives excelent advise on how to do that. You ignored
> two important recommendations. I leave it up to you
> to find out what they are. You can find a link to the
> FAQ at the bottom of each message on the statalist.
>
> I have tried your code using the version of -cmp- I
> downloaded from SSC by typing in Stata:
> -ssc install cmp-.
>
> With this version I got as close to the output of
> -tobit- as I expected to come given the difference
> in estimation method.
>
> -- Maarten
>
> --------------------------
> Maarten L. Buis
> Institut fuer Soziologie
> Universitaet Tuebingen
> Wilhelmstrasse 36
> 72074 Tuebingen
> Germany
>
> http://www.maartenbuis.nl
> --------------------------
>
>
>
>
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