[R] Confusion matrix from cross validation in R:

parmee
Wed, 14 Oct 2009 00:26:53 -0000

Hey!

How do I get the confusion matrix after performing 10-fold cross validation
from SVM in R?

When I try to print it, I get the confusion matrix without cross validation.
I need to compute PPV. Should I report PPV without CV and total accuracy
with CV?

I am confused.

> svmtrain <- svm(xtrain,ytrain,kernel="sigmoid",cross=10)
> pred <- predict(svmtrain, xtrain)
> table(pred, ytrain)

Pam
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