[R] testing parallel slopes assumption for Ordinal Logistic Regression

[Juliet Hannah]

See the post by Frank Harrell at:

http://groups.google.com/group/medstats/browse_thread/thread/cbff7871179e9508?pli=1

or google

regrouping to satisfy proportional odds

On Tue, May 1, 2012 at 2:14 AM, 80past2 <bennyska at gmail.com> wrote:
> Hi everyone, I'm a bit new here (and new to R), and I was trying to do an
> OLR, and testing the parallel slope assumption seems be very important. I
> browsed through past postings, and didn't find much to help me in this area.
> I was wondering if anyone knew how I could go about doing this. Thank you.
>
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