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Re: st: again on pieces CHOICE


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: again on pieces CHOICE
Date   Tue, 11 Mar 2008 14:48:14 +0000 (GMT)

--- Chiara Mussida <cmussida@gmail.com> wrote:
> this message is simply to ask again for a confirmation regarding the
> choice of proper pieces for a piecewise constant hazard model:
> is it correct to make a selection based only on relative frequencied
> of the dependent variable, as I inferred by the literature??

Doing this kind of model selection right is really the art of
data-analysis, and can, in the end, only be done by the analyst who has
(or should have) all the knowledge about the subject matter, the
hypotheses, and the peculiarities of the data. Generally speaking, 
relative frequencies seems as good/bad a criterium as any other, but
this may or may not be true for your specific project. 

-- Maarten


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

visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434

+31 20 5986715

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


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