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st: update ldecomp available on SSC


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   stata list <statalist@hsphsun2.harvard.edu>
Subject   st: update ldecomp available on SSC
Date   Wed, 27 Oct 2010 16:54:29 +0100 (BST)

Thanks to Kit Baum an update of the -ldecomp- package is now 
available from SSC. To install this update type in Stata 
-ssc install ldecomp, replace-

-ldecomp- decomposes a total effect in a logit model into 
direct and indirect effects. It is discussed in:

M.L. Buis (2010) "Direct and indirect effects in a logit 
model", The Stata Journal, 10(1), pp. 11-29.

This update fixes a bug that resulted in an error in the 
table of observed proportions when one or more control 
variables where specified. This table is displayed when
the -obspr- option is specified and returned as e(prop_obs).
Fortunately, this error did not propagate to the other
tables.

This update also fixes a hard to understand error message
when one included in the list of control variables one or 
more variables that were also specified in -direct() and 
-indirect()-. In the new version these variables will 
automatically be removed from the list of control 
variables.

-- Maarten

--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany

http://www.maartenbuis.nl
--------------------------


      

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