[R] aov + pairwise.t.test: only selected pairs

ONKELINX, Thierry Thierry.ONKELINX at inbo.be
Wed Jun 11 10:28:59 CEST 2014

Have a look at the multcomp package. The examples in glht() demonstrate how to specify the required contrasts.

Best regards,

ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest
team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance
Kliniekstraat 25
1070 Anderlecht
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-----Oorspronkelijk bericht-----
Van: r-help-bounces op r-project.org [mailto:r-help-bounces op r-project.org] Namens Andreas Maunz
Verzonden: woensdag 11 juni 2014 10:02
Aan: r-help op r-project.org
Onderwerp: [R] aov + pairwise.t.test: only selected pairs


I have a 1-way anova result and want to do a post test.

I want to do pairwise t-tests where the global variance is taken into account (i.e. a real post test on the anova result, not multiple simple t tests on the samples).

I understand I should use pairwise.t.test() for that. However, it does not allow me to select specific pairs, it always analyzes all pairs. How can I analyze specific pairs only?


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