

Basically I do LCA, followed by some kind of analysis intended to validate the solutions. For example, I would create latent class solutions for each gender based on four dichotomic indicators of psychosis. Next, I would look at the interaction of current psychiatric status (the classes) and past psychiatric diagnosis to predict institutional treatment use (logit or logistic models). poLCA is a little limited for this purpose; I would have to use it in combination with some other package. For example, it doesn't provide residuals for the indicators, or the Cressie-Read statistic. 

David Joubert  

  
Date: Fri, 6 May 2011 09:56:05 +0200
Subject: Re: [R] Vermunt's LEM in R
From: i.visser@uva.nl
To: ronggui.huang@gmail.com
CC: joubd@hotmail.com; r-help@r-project.org

poLCA is an option, as is randomLCA, flexmix, and depmixS4, and there are likely to be more
What specific models are you interested in?
Best, Ingmar

On Fri, May 6, 2011 at 6:13 AM, Wincent <ronggui.huang@gmail.com> wrote:

I guess LEM is a software for latent class analysis. If so, you may

want to have a look at poLCA package.



Regards

Ronggui



On 5 May 2011 23:34, David Joubert <joubd@hotmail.com> wrote:

>

> Hello-

>

> Does anyone know of packages that could emulate what J. Vermunt's LEM does ? What is the closest relative in R ?

> I use both R and LEM but have trouble transforming my multiway tables in R into a .dat file compatible with LEM.

>

> Thanks,

>

> David Joubert

>

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>

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>







--

Wincent Ronggui HUANG

Sociology Department of Fudan University

PhD of City University of Hong Kong

http://asrr.r-forge.r-project.org/rghuang.html



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