[R] anova vs aov commands for anova with repeated measures

[Frodo Jedi]

Dear Dieter,
thanks a lot for your answer. 
Don´t you mind to do an example of the use of the command?

For example, in attachment you find a .csv table resulting from an experiment, 
you can access it by means of this command:

> scrd<-  
>read.csv(file='/Users/....../tables_for_R/table_quality_wood.csv',sep=',',header=T)
>

The data are from an experiment where participants had to evaluate on a seven 
point likert scale
the realism of some stimuli, which are presented both in condition "A" and in 
condition "AH".

I need to perform the ANOVA by means of this command:

> aov1 = aov(response ~ stimulus*condition + Error(subject/(stimulus*condition)), 
>data=scrd)



All the best




________________________________
From: Dieter Menne <dieter.menne at menne-biomed.de>
To: r-help at r-project.org
Sent: Sat, January 8, 2011 3:50:23 PM
Subject: Re: [R] anova vs aov commands for anova with repeated measures



Bill.Venables wrote:
> 
> ...
> If you want to fit a multistratum model, such as a repeated measures
> model, you need to use aov.
> 
> 

...Or lme in nlme / lmer in lme4.

Dieter


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