Message-ID: <75DC6BD5-177A-42BB-A738-BAE188060BAA@comcast.net>
Date: 2009-04-25T12:19:48Z
From: David Winsemius
Subject: ordinal logistic regression for longitudinal data set
In-Reply-To: <23225097.post@talk.nabble.com>
On Apr 24, 2009, at 5:22 PM, joy_stat wrote:
>
>
> Hi,
>
> Can one tell me which procedure will fit an ordinal logistic
> regression
> model for longitudinal data set.
>
> To be precise, I have both dichotomous and polytomous items. Also, I
> would like to specify different covariance structures (unstructured,
> ar1
> etc) for trial runs.
>
That may seem precise to you .... Perhaps you will find useful
material in chapter 11 of Agresti's Categorical Data Analysis:
http://www.amazon.com/Categorical-Analysis-Wiley-Probability-Statistics/dp/0471360937
http://www.stat.ufl.edu/~aa/cda/cda.html
... and the R/S accompaniment by Thomson:
https://home.comcast.net/~lthompson221/Splusdiscrete2.pdf
She offers worked examples using functions from package geepack.
--
David Winsemius, MD
Heritage Laboratories
West Hartford, CT