st: Re: SELMLOG command syntax help

["R.E. De Hoyos" <redeho@hotmail.com>]

Hassan,

[if] and [in]  are delimiters that are defined by an expression or a range, 
repectively; e.g: sum Y if Dummy==1, or sum Y in 1/10. Secondly, as you can 
read from -selmlog-'s help file, the dependent variable in the selection 
equation (depvar_m) is a discrete variable taking more than two values.

Best,
Rafa
_______________________
Rafael E. De Hoyos
DEC Prospects Group
The World Bank
Washington, DC 20433


----- Original Message ----- 
From: "Hassan Ghomrawi" <ghom0001@umn.edu>
To: <statalist@hsphsun2.harvard.edu>
Sent: Monday, September 18, 2006 4:04 PM
Subject: st: SELMLOG command syntax help



> Hi,
> I am trying to fit a multinomial logit selection model for my dissertation 
> work. I found the SELMLOG command developed by Bourguignon et al. If 
> someone has fitted such a model before please I would really appreciate 
> your help.
>
> The reference to the syntax is in the following link:
> http://www.delta.ens.fr/gurgand/selmlog.pdf
>
> The SELMLOG command is:
> selmlog depvar varlist *[if exp] [in range]*,select(depvar_m=varlist_m)
> [lee dmf dmf2 dhl(# [all]) showmlogit wls
> bootstrap(number_of_replications [sample_size]) mloptions(mlogit
> options)].
>
> 1-Can anyone help me fill in the blanks for the following:
> [if exp]
> [in range]
> because they were not specified in the originial syntax description.
>
> 2-how is the choice variable represented in the model:
> 1 variable with 3 choices (depvar_m) or 3 dummy variables
>
> Thanks
> Hassan
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