CODEWITHSUNDEEP
javawekabayesian
M.R.
M.R.

Reputation: 2009

Weka: How do I get the prediction value in java for a test instance?

I have successfully trained a classifier (bayesnet) and constructed a test set (ARFF-format), which has one instance, with one missing value. 

Evaluation eTest = new Evaluation(trainingInstance);
eTest.evaluateModel(bayes_Classifier, testInstance);

How can I access the prediction for the missing value? I have tested both ARFF structures (training & Test) with the GUI. They work. I simply do not know, how to access the prediction value...

Upvotes: 0

Views: 2865

Answers (1)

Daniel Widdis
Daniel Widdis

Reputation: 9091

You want to use eTest.evaluateModelOnce() which would return a double value, the prediction for a single testInstance. The evaluateModel() method is intended for multiple instances.

Upvotes: 1

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