[R] Nonparametric Tukey-type multiple comparisons "Nemenyi" test

From: Rikki Dunsmore <Rikki.Dunsmore_at_noaa.gov>
Date: Tue 03 May 2005 - 09:45:20 EST


I am trying to do a Nonparametric Tukey-type multiple comparison post-hoc test to determine which groups are significantly different. I have read the dialogue on this topic from the R-help, and am still not clear why no statistical packages include this test as an option? Is it not an appropriate test to conduct on non-normally distributed data? Is the only option to calculate it by hand using the (Zar 1996) formula?

Thank you in advance for your help.

-- 
Rikki Grober- Dunsmore
National Marine Fisheries Service
National Marine Protected Areas Center
110 Shaffer Rd.
Santa Cruz, CA 95060
831-420-3991 


Unless someone like you,
Cares a whole awful lot,
Nothing is going to get better,
It's not.
       - The Lorax, by Dr. Seuss, 1971

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Received on Tue May 03 09:45:49 2005

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