Thanks, this is a good solution
Dr. Iasonas Lamprianou
Assistant Professor (Educational Research and Evaluation)
Department of Education Sciences
European University-Cyprus
P.O. Box 22006
1516 Nicosia
Cyprus
Tel.: +357-22-713178
Fax: +357-22-590539
Honorary Research Fellow
Department of Education
The University of Manchester
Oxford Road, Manchester M13 9PL, UK
Tel. 0044 161 275 3485
iasonas.lampria...@manchester.ac.uk
--- On Fri, 28/5/10, RICHARD M. HEIBERGER <r...@temple.edu> wrote:
From: RICHARD M. HEIBERGER <r...@temple.edu>
Subject: Re: [R] anova post hoc tests
To: "Iasonas Lamprianou" <lampria...@yahoo.com>
Cc: r-help@r-project.org
Date: Friday, 28 May, 2010, 15:00
Download and install
install.packages("RcmdrPlugin.HH")
library(RcmdrPlugin.HH)
Then there are two options.
The Rcmdr menu item
Statistics > Means > One-way ANOVA...
has a checkbox for pairwise comparison of means"
It uses glht in the multcomp package.
The second option, which I prefer, is to use the MMC (Mean-mean Multiple
Comparisons) plot. I describe the one-way ANOVA use here. See the help
file for higher-order designs and user-specified contrasts.
After running the One-way ANOVA above,
click the Rcmdr menu item
Models > Graphs > MMC plot... (HH)
Select the model and click OK.
If the means of the groups are close together, you might need to check
the box for the tiebreaker plot. You will need to record graph history if you
need the teibreaker plot as it appears on a second page.
Rich
On Fri, May 28, 2010 at 8:11 AM, Iasonas Lamprianou <lampria...@yahoo.com>
wrote:
Hi everybody
does anyone know how I can run ANOVA post-hoc tests using R commander or R in
general?
Thank you
Dr. Iasonas Lamprianou
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