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AW: st: Re: Marginal Effects in Tobit


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   AW: st: Re: Marginal Effects in Tobit
Date   Sat, 30 May 2009 11:57:54 +0200

<> 

John,

you can render -dtobit- operational by typing -version 8.2- interactively/in
your do-file. Note when the command stops in the following example...

*************
sysuse auto, clear

forv i=6/10{
	version `i'
	di in red "Now at version: " `i'
	tobit mpg trunk weight, ll(17)
	dtobit
}
*************



HTH
Martin

-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von John Bunge
Gesendet: Samstag, 30. Mai 2009 11:45
An: statalist@hsphsun2.harvard.edu
Betreff: Re: st: Re: Marginal Effects in Tobit

sorry, of course I do mean DTOBIT and DTOBIT2

thanks



> -----Ursprüngliche Nachricht-----
> Von: "Martin Weiss" <martin.weiss1@gmx.de>
> Gesendet: 30.05.09 11:22:03
> An: <statalist@hsphsun2.harvard.edu>
> Betreff: st: Re: Marginal Effects in Tobit


> <>
> 
> You keep talking about "dprobit" which is a little weird. I assume you
mean 
> "dtobit" and "dtobit2"?
> 
> 
> 
> HTH
> Martin
> _______________________
> ----- Original Message ----- 
> From: "John Bunge" <jota.be@web.de>
> To: <statalist@hsphsun2.harvard.edu>
> Sent: Saturday, May 30, 2009 11:17 AM
> Subject: st: Marginal Effects in Tobit
> 
> 
> > Dear All
> >
> > I'd like to compute the marg. effects and its standard errors for the 
> > unconditional expect value in the tobit model.
> >
> > (1) the standard command "tobit" in combination with "mfx" does not
offer 
> > the option to compute marginal effects for the UNCONDITIONAL expected 
> > value (in contrast to the marg eff on the expected value conditional on 
> > being uncensored and the marginal effect on the probability to be 
> > uncensored).
> > (2) the command "dprobit" is constantly reporting me an error: "[_se]
not 
> > found"
> > (3) the command "dprobit2" computes the marginal effects but does not 
> > provide the standard errors (or at least its help file does not describe

> > how to obtain them)
> >
> > Best,
> >
> > John.
> > *
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> > 
> 
> *
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> 



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