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st: update fmlogit available on ssc


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   stata list <statalist@hsphsun2.harvard.edu>
Subject   st: update fmlogit available on ssc
Date   Fri, 12 Feb 2010 17:15:32 +0000 (GMT)

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

-fmlogit- fits a model for multiple dependent variables which
are proportions. For example a dataset may contain data on 
multiple cities, and for each city information is collected
on the proportion of their budget which is spent on their 
bureacracy, social support, education, security, etc. The
-fmlogit- package can be used to estimate the effect of 
explanatory variable (e.g. the political orientation of the 
governing coalition) on the composition of the budget. 

New in this update is the -dfmlogit- program, this will 
produce marginal effects and their standard errors. In 
principle these could also be computed using -margins- (or
-mfx- for earlier versions of Stata), except that in many
cases these programs experienced difficulties computing the
standard errors. (For those who are interested in the 
technical details: -dfmlogit- solves this by replaceing 
the numerical derivatives with analytical derivatives while
using the delta method.)

-- Maarten

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

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


      

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