Hello,
I've come across a strange error...
Here is what happens:
model <- svm(traindata,trainlabels, type="C-classification",
kernel="radial", cost=10, class.weights=c("win"=3,"lose"=1),
scale=FALSE, probability = TRUE)
predictions <- predict(model, traindata)
pred <- prediction(predictions, trainlabels)
This returns an error:
Error in prediction(predictions, trainlabels) :
Format of predictions is invalid.
Yet my predictions is just a matrix of predicted labels. Nothing
fancy. (In fact, my step follow the exact example on the ROCR homepage.)
A search through google for "Format of predictions is invalid" returns
zero results.
Can anyone suggest how I might fix this problem?
Thank You,
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