2 messages · joy_stat, David Winsemius
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.
Thanks
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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