[R] Post hoc tests

Graham Smith myotis at cix.compulink.co.uk
Tue Feb 27 08:36:00 CET 2001

This is only partly an R question, but this seems a good place to ask.

Like many, if not most, statistics programs, R has no post hoc tests 
for Kruskal Wallis or Friedman, and as far as I can make out they are 
not available in any of the R packages. I would be grateful if someone 
could point me in the right direction if I am wrong.

As I said this is not uncommon. Parametric Anova procedures almost 
always, if not always, come with a post hoc procedure. Why is it not 
the same with non-parametric anovas.

I assume there is some reason for this, and would be very pleased to 
have it explained.

Many thanks,

Graham S

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