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Decision tree - confusionMatrix returns error #4

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enzedonline opened this issue Jan 2, 2022 · 0 comments
Open

Decision tree - confusionMatrix returns error #4

enzedonline opened this issue Jan 2, 2022 · 0 comments

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@enzedonline
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Running the code as given, the confusionMatrix returns an error:
Error: data and reference should be factors with the same levels.

A bit of digging turns up that the function is expecting the second argument to be a factor. It can be fixed by amending the line to:
confusionMatrix(test_pred, as.factor(testing$V7))

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@enzedonline