[R] KNN one factor predicting problem

From: liu qin <liuqincn_at_yahoo.com>
Date: Tue 15 Mar 2005 - 23:59:18 EST


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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