On Dec 30, 2010, at 10:11 AM, David Winsemius wrote:
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)
And the other _big_ problem that I did not notice at first is that
you are overwriting your data with the model output. This isn't
exactly the problem addressed by fortune("dog") but an even more
severe case of identity conflation. This is even a further example of
why it is a bad idea to use the attach function.
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?
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David Winsemius, MD
West Hartford, CT
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David Winsemius, MD
West Hartford, CT
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