[R] please Help me on a repeated measures anova

[David Winsemius]

On Dec 30, 2010, at 5:38 AM, soileil wrote:

>
> So far I've done this:
>
>
>> tableau = read.table("Classeur1.txt", h=T)
>> tableau
>    Temps.s. Modalite  AchE
> 1         15       ER   0,1
>
snipped data
> 103      120   SED+ED  0,19
> 104      120   SED+ED 0,172
>> attach (tableau)
>
>
>> tableau <- lm (AchE ~ Temps.s. * Modalite, random = ~ 1 | individu)
> Erreur dans storage.mode(y) <- "double" :
>  la modification du mode de stockage

Even without an English translation, it seems very likely that the  
AchE variable is not of numeric class,  but rather a factor. You may  
want to redo your data input step with a setting for the decimal  
separator set properly for the conventions of your locale settings.  
See help(read.table)

You may also want to look at the settings for locale if you will  
typically be using "," as a decimal separator.

?options
?locales


> d'un objet 'factor' n'est pas
> autorisée
> De plus : Messages d'avis :
> 1: In model.response(mf, "numeric") :
>  l'utilisation de type="numeric" avec une réponse de type facteur sera
> ignorée
> 2: In lm.fit(x, y, offset = offset, singular.ok = singular.ok, ...) :
>  les arguments surnuméraires random sont ignorés.
>
> What is my mistake?
> -- 
> View this message in context: http://r.789695.n4.nabble.com/please-Help-me-on-a-repeated-measures-anova-tp3159868p3168134.html
> Sent from the R help mailing list archive at Nabble.com.
>
-- 

David Winsemius, MD
West Hartford, CT