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Re: st: Assistance regarding a maximum likelihood model


From   Maarten Buis <maartenlbuis@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Assistance regarding a maximum likelihood model
Date   Wed, 14 Sep 2011 08:49:55 +0200

On Wed, Sep 14, 2011 at 3:23 AM, jkea1937@uni.sydney.edu.au  wrote:
> I am completing a study on contributions of volunteer hours in a not-for-profit organisation, factoring in a number of motives and also controls (i.e. time constraints). These hours have been disaggregated into different activities, with potentially different motives for the hours in each).
>
> I am not a statistics genius but I'm trying to get my head around the model. I'm looking at a maximum likelihood model in order to try to predict where someone would sit (in terms of hours contributed). <snip>

Your model looks like a finite mixture model, which has already been
implemented by Partha Deb in the -fmm- program which you can get by
typing in Stata -ssc install fmm-. He gave a presentation on it at the
2008 North American Stata Users' meeting. You can download the slides
at: <http://ideas.repec.org/p/boc/nsug08/7.html>

Hope this helps,
Maarten

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


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

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