R help - Sep 2003 - SNK-test

How can I perform a Student-Newman-Keuls-Test for multiple comparision of means
in R?
(I did not manage to find any specific function in the libraries)


Jörg Peter Baresel
Technische Universität München
Institut für Ackerbau und INformatik im Pflanzenbau
D-85354 Freising
Lange Point 51


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Have you tried www.r-project.org -> search -> "R site search"? 
I just
got several hits for "multiple comparisons" and
"Newman-Keuls".

hope this helps.  spencer graves

J?rg Peter Baresel wrote:
>  How can I perform a Student-Newman-Keuls-Test for multiple comparision of
means in R?
> (I did not manage to find any specific function in the libraries)
> 
> 
> J?rg Peter Baresel
> Technische Universit?t M?nchen
> Institut f?r Ackerbau und INformatik im Pflanzenbau
> D-85354 Freising
> Lange Point 51
> 
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help

Please note Student-Newman-Keuls is NOT a recommended multiple comparison
procedure.

In the language of Hsu (1996), Student-Newman-Keuls is not even a
"confident inequalities" method. In other words, it does not control
the probability of making at least one incorrect assertion of inequality (which
is the least you should expect of any multiple comparisons procedure).

Tukey's HSD does protect the desired error rate, and gives you confidence
intervals as well (not just assertions of inequality).

Reference:

Hsu (1996). Multiple Comparisons, Theory and Methods. Chapman Hall.

J?rg Peter Baresel wrote:
>  How can I perform a Student-Newman-Keuls-Test for multiple 
> comparision of means in R? (I did not manage to find any specific 
> function in the libraries)
> 
> 
> J?rg Peter Baresel
> Technische Universit?t M?nchen
> Institut f?r Ackerbau und INformatik im Pflanzenbau
> D-85354 Freising
> Lange Point 51
> 
James A. Rogers, Ph.D. <rogers at cantatapharm.com>
Statistical Scientist
Cantata Pharmaceuticals
300 Technology Square, 5th floor
Cambridge, MA  02139
617.225.9009 x312
Fax 617.225.9010