Re: [Wekalist] classify, evaluate and export confution matrix
by Hans van Rijnberk , Assort Vision, Utrecht
Class ThresholdCurve produces a curve (by getCurve method) with all the
confusion matrix numbers (for ++,+-,--, -+) per threshold value (probability
of the positive class under consideration).
At 10:40 4/2/05 +0200, Maria Tsiakmaki wrote:
>I am trying to build a classifier (smo) and evaluate it using 10-fold
>validation and then export the confusion matrix.
>how i am i going to do this through java???
>since know i have build the classifier and i am doing manually the 75%-25%
>split evaluation (manually I mean that i build the classifier with the 75%
>of my instances and then check results
>I have seen the class of the confution matrix but i dont know how to use it.
>I notices the options on classifier -W
>(num Random number seed for cross-validation)
>where i guess I should put 10. But how am I going to get the resulted
>thanks again for your consideration.
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Hans van Rijnberk