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.lamprianou@manchester.ac.uk

--- On Fri, 28/5/10, RICHARD M. HEIBERGER <rmh@temple.edu> wrote:

From: RICHARD M. HEIBERGER <rmh@temple.edu>
Subject: Re: [R] anova post hoc tests
To: "Iasonas Lamprianou" <lamprianou@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 <lamprianou@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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