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Re: st: Simulating a change in a variable and obtaining its effects on the predicted probabilities of a multinomial probit.


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Simulating a change in a variable and obtaining its effects on the predicted probabilities of a multinomial probit.
Date   Tue, 19 Sep 2006 22:27:02 +0100 (BST)

--- Stephen Johnston <s.johnston1@gmail.com> wrote:
> I am trying to figure out how to simulate the effect of a change of a
> variable on the predicted probabilities of a multinomial probit.

Stephen:
Getting the effects of discrete changes like this has been implemented
in Scot Long's excelent -spost- package with the -prchange- command. To
find it type in Stata -findit spost- (without the hyphens).  You can
write code to calculate those effects of discrete changes in
explanatory variable yourself, and if you are interested I am happy to
give you some pointers since I have done something similar recently,
but using existing programs saves you a lot of debugging. 
HTH,
Maarten



-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands

visiting adress:
Buitenveldertselaan 3 (Metropolitan), room Z434

+31 20 5986715

http://home.fsw.vu.nl/m.buis/
-----------------------------------------


	
	
		
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