[R] Error with KNN

[Uwe Ligges]

On 20.02.2010 19:10, Nancy Adam wrote:
>
>
>
> Hi all
>
> I receive this error message:  “Error in mymodel$MSE : $ operator is invalid for atomic vectors”
> When I use KNN.
> This is the code:
>
> library(e1071)
> train<- rbind(iris3[,,1], iris3[,,2], iris3[,,3])
> cl<- factor(c(rep("s",50), rep("c",50), rep("v",50)))
> knn.cv(train, cl, k = 3, prob = TRUE)
> sqrt(mymodel$MSE)
> #error message : “Error in mymodel$MSE : $ operator is invalid for atomic vectors”
>

There is no component MSE in mymodel. Hence you cannot extract it.

Uwe Ligges





> thanks,
> Nancy
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