[R] Test of Parallel Regression Assumption in R

Bert Gunter gunter.berton at gene.com
Mon Mar 11 22:45:41 CET 2013


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
>
>         [[alternative HTML version deleted]]
>
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> and provide commented, minimal, self-contained, reproducible code.



-- 

Bert Gunter
Genentech Nonclinical Biostatistics

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