R help - Jan 2009 - R SEM package

Does anyone know if the sem package in R can implement a stacked model 
comparison, for example as in LISREL or AMOS?

Thanks,

Anthony

-- 
Anthony Steven Dick, Ph.D.
Post-Doctoral Fellow
Human Neuroscience Laboratory
Department of Neurology
The University of Chicago
5841 S. Maryland Ave. MC-2030
Chicago, IL 60637
Phone: (773)-834-7770
Email: adick at uchicago.edu
Web: http://home.uchicago.edu/~adick/

Dear Anthony,

I'm not sure what you mean by a "stacked model comparison." If you
mean a
model fit to multiple groups, then the answer is no. If you mean comparison
of nested models, then anova() can be used to get a LR test. See ?anova.sem.

I hope this helps,
 John

------------------------------
John Fox, Professor
Department of Sociology
McMaster University
Hamilton, Ontario, Canada
web: socserv.mcmaster.ca/jfox

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at
r-project.org]
On
> Behalf Of Anthony Dick
> Sent: January-06-09 2:56 PM
> To: r-help at r-project.org
> Subject: [R] R SEM package
> 
> Does anyone know if the sem package in R can implement a stacked model
> comparison, for example as in LISREL or AMOS?
> 
> Thanks,
> 
> Anthony
> 
> --
> Anthony Steven Dick, Ph.D.
> Post-Doctoral Fellow
> Human Neuroscience Laboratory
> Department of Neurology
> The University of Chicago
> 5841 S. Maryland Ave. MC-2030
> Chicago, IL 60637
> Phone: (773)-834-7770
> Email: adick at uchicago.edu
> Web: http://home.uchicago.edu/~adick/
> 
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