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
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