[R] ANOVA

[Winfried Theis]

Hi Britta!


On Tue, 2003-09-09 at 10:57, Britta Lintfert wrote:
[snip]
> 
> 
> now I want to know, if there are significant differents in the variables
> OQ, GO, SK, RC depending on Tone. This I can do with an ANOVA , or??
Yes, this is correct.
> 
> But when I start aov in R I get the following message:
> 
> anova1 <- aov(Tone ~  OQtil4*OQ0*GOtil4*GO0*SKrhsJ*SK0*RCrhsJ*RC0,
> data=gesamt)
> Warning message:
> "-" not meaningful for factors in: Ops.factor(y, z$residuals)
> 
> What's wrong with my Data?
Nothing. It is your call to aov that is wrong. Formulas in R are
formulated as "Dependent variable" ~ "influences". So what you are
trying to do is to explain Tone by all your other variables and their
interactions. If your variables are independent you may simply go ahead
and use aov on each of them. Look first for a book on multivariate
linear models...

> 
> 
> Thanks for helping me
You're welcome.

Winfried
> 
> Britta
> 
> 
> 
> --
> Britta.Lintfert at IMS.Uni-Stuttgart.de
> Institut für Maschinelle Sprachverarbeitung
> http://www.ims.uni-stuttgart.de
> der Universität Stuttgart               Tel.: 0049/711/121-1372
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> 
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-- 
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Dipl.-Math. Winfried Theis
SFB 475, Fachbereich Statistik, Universit"at Dortmund, 44221 Dortmund
Tel.: +49-231-755-5903 FAX: +49-231-755-4387