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st: Conditional marginal effects in heckprob

From   "Garrido, Melissa" <>
To   <>
Subject   st: Conditional marginal effects in heckprob
Date   Mon, 23 Aug 2010 10:14:21 -0400

Hi - 

I have a question about the -margins- command in Stata 11, when used
after heckprob.

I want to get conditional marginal effects of my outcome variable, but
I'm not sure whether I have the correct syntax (and haven't found the
answer in the help files).

Is the default option within -margins- to calculate the conditional
marginal effect, or is there something additional I need to specify?

Here is what I have:


heckprob diedvsroutinetotal = $indepvar , select (not_transfer =
$indepvar $instruments) 

/*Marginal effects at means:*/

margins, dydx(*) atmeans 

/*Average marginal effect:*/

margins, dydx(*)




Thank you,




Melissa Garrido, PhD
Research Health Science Specialist
GRECC/REAP, James J Peters VA Medical Center
130 West Kingsbridge Road
Bronx, NY 10468
718-584-9000 x 3804
Assistant Professor
Department of Geriatrics & Palliative Medicine
Box 1070
Mount Sinai School of Medicine
One Gustave L. Levy Place
New York, NY 10029

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