I've got a list of trainingsets (each with 944 instances) and a list of testsets (each with 188 instances). I want to make a model from my first trainingset and test it on my first testset. I've got the following code:
traindata <- data.frame(data[trainingset[[1]], 120:130],data2[trainingset[[1]],ncol(data2)])
testdata <- data.frame(data2[testset[[1]], 120:130])
RPART_model <- rpart(data2[trainingsets[[1]],ncol(data2)]~., data=traindata)
RPART_testpredictions <- predict(RPART_model, new=testdata, type ="vector")
But when I control my RPART_testpredictions with length(RPART_testpredictions), I become 944.
Can someone help me?