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st: AW: Probabilities after logit?


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: AW: Probabilities after logit?
Date   Mon, 1 Jun 2009 14:59:25 +0200

<> 

If you want to apply your formula to the estimates, use -nlcom-



*************
webuse lbw2, clear

logit low age lwt /* 
 */ race2 race3 smoke/* 
 */  ptl ht ui 
 
nlcom exp(_b[age])/(1+exp(_b[age]))

//for all covariates
capt ssc inst indeplist

qui indeplist

foreach var in `r(X)'{
	nlcom exp(_b[`var'])/(1+exp(_b[`var']))
}
*************



HTH
Martin


-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Kanter, Rebecca
Gesendet: Montag, 1. Juni 2009 14:50
An: statalist@hsphsun2.harvard.edu
Betreff: st: Probabilities after logit?

Hi,

I would like to get the logit output in stata in a form of "probabilities"
(via transforming the log odds through the formula e^x / (1 + e^x)). Does
anyone know if there is a command(s) to do this? (I know you can get the
"predicted" line in the probability format, but am looking here, to be able
to see the coefficients in the form of probabilities).

Thanks,
Rebecca

___________________________________________
Rebecca M. Kanter
PhD Candidate
Johns Hopkins Bloomberg School of Public Health
Department of International Health
Center for Human Nutrition

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