[R] KNN one factor predicting problem
liu qin
liuqincn at yahoo.com
Tue Mar 15 13:59:18 CET 2005
Could anybody help me out please?
> cl<-as.factor(traindata[,13])
> knn(traindata[1:295,2], newdata[1:32,2], cl,k=2,
prob=TRUE)
Error in knn(traindata[1:295, 2], newdata[1:32, 2],
cl, k = m, prob = TRUE) :
Dims of test and train differ
Both traindata and newdata have 13 elements. Only one
of the first 12 elemnets is needed to predict the 13
element.
What's the problem of following commands?
Thank you very much indeed
Qin
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