Sorry Sarah for my basic question: what does "a column was read as factor"
mean?
When I type data , I obtain all the numeric values and the headears I
added (Consommation,Cylindre,Puissance,Poids)
Thanks
2015-04-20 18:40 GMT+02:00 Sarah Goslee <sarah.gos...@gmail.com>:
> What is the problem? One or more of your columns was read as factor, as
>
> str(data)
>
> would show you. To avoid this, you can add stringsAsFactors=FALSE to
> the read.table command, but if you expect your data to be entirely
> numeric then there's something wrong with it that you need to hunt
> down.
>
> Sarah
>
> On Mon, Apr 20, 2015 at 12:33 PM, Sonia Amin <soniaam...@gmail.com> wrote:
> > Dear All,
> >
> > I have written the following lines:
> >
> >
> data<-read.table("C:\\Users\\intel\\Documents\\SIIID\\datamultiplereg.txt",header
> > = FALSE, sep = "")
> > colnames(data)<-c("Consommation","Cylindre","Puissance","Poids")
> > result.model1<-lm(Consommation~Cylindre+Puissance+Poids, data=data)
> > summary(result.model1)
> >
> > I obtained the following message:
> >
> >
> > Call:
> > lm(formula = Consommation ~ Cylindre + Puissance + Poids, data = data)
> >
> > Residuals:
> > Error in quantile.default(resid) : factors are not allowed
> > In addition: warning message:
> > In Ops.factor(r, 2) :
> > ‘^’ This is not relevant for factors
> >
> >
> > Where is the problem?
> > Thank you in advance
> >
> --
> Sarah Goslee
> http://www.functionaldiversity.org
>
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
