Dear List members,
I am just beginning to learn how to use Bengt Muthen's Mplus
(www.statmodel.com). Do any of you have experience and if so in what
ways can WinBUGS be helpful in evaluating models fit with Mplus and
Vis-versa?
Marc
-----Original Message-----
From: Verena Schmittmann [mailto:[log in to unmask]]
Sent: Wednesday, January 18, 2006 4:03 PM
To: [log in to unmask]
Subject: comparison of mixture models + label switching problem
Dear list members,
I have some questions concerning the fitting of mixture models with
WinBUGS:
1) comparison of mixture models:
On which characteristics of the mixture models does the usefulness of
DIC for model comparison in the case of mixture models depend? Which
alternatives could I use to compare (well separated) mixtures of time
series models? Would the DIC be useful to compare different mixture
models which have the SAME number of components? If so, how could I
obtain the DIC in WinBUGS for a mixture model?
2) label-switching problem:
Is it true that non-overlap in the posterior distributions of parameters
of components of a mixture, and unimodality of the posterior
distribution of the mixing proportion may be considered as evidence
against the occurence of label-switching?
Thanks very much for sharing references, suggestions, experience,
answers..
Verena
-------------------------------------------------------------
Verena Schmittmann
Department of Developmental Psychology
<http://www.fmg.uva.nl/op/op_aktueel.cfm>
University of Amsterdam <http://www.uva.nl/> Roetersstraat 15
1018 WB Amsterdam
The Netherlands
http://users.fmg.uva.nl/vschmittmann/
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