Test of Parallel Regression Assumption in R
Heather: You are at Vanderbilt, whose statistics department under Frank Harrell is a veritable bastion of R and statistical wisdom. I strongly recommend that you take a stroll over there in the lovely spring weather and seek their help. I can't imagine how you could do better than that! Cheers, Bert On Mon, Mar 11, 2013 at 2:02 PM, Heather Kettrey
<heather.h.kettrey at vanderbilt.edu> wrote:
Hi, I am running an analysis with an ordinal outcome and I need to run a test of the parallel regression assumption to determine if ordinal logistic regression is appropriate. I cannot find a function to conduct such a test.
From searching various message boards I have seen a few useRs ask this same
question without a definitive answer - and I came across a thread that
indicated there is no such function available in any R packages. I hope
this is incorrect.
Does anyone know how to test the parallel regression assumption in R?
Thanks for your help!
--
Heather Hensman Kettrey
PhD Candidate
Department of Sociology
Vanderbilt University
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Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm