[R] ANOVA "ex post" Analysis (fwd)

Uli Flenker; Raum 704 uli at biochem.dshs-koeln.de
Thu May 6 13:28:12 CEST 1999


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Date: Wed, 5 May 1999 16:42:55 +0200 (CEST)
From: "Uli Flenker; Raum 704" <uli at pcinternet.biochem.dshs-koeln.de>
To: R-Mailing-List <r-help at stat.math.ethz.ch>
Subject: ANOVA "ex post" Analysis

Hello everybody,

shame on me if I have overlooked something (CRAN, StatLib), but I think
I've searched carefully. Maybe it's just too obvious to see for me
(happens frequently).

Is a function available that extracts multiple comparison of means from
objects produced by "aov()" ? Sorry if the term is not correct, I
translated from german word by word ("Multiple Mittelwertvergeiche"). 

What I mean are procedures like the Student-Newman-Keuls test or Scheffe
test, that allow to test selected pairs of factor combinations after
applying an ANOVA to a set of data. 

I'm somewhat surprised that this seems not to be a topic of discussion
among R-users since great emphasis is put on these procedures in most
(german) textbooks on applied (bio)statistics.

Many thanks ...


        Uli Flenker
        Institut fuer Biochemie
        Deutsche Sporthochschule Koeln
        Carl-Diem-Weg 6

        50933 Koeln

        Tel.: D/0221/4982-493
                         -494

 




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