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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…
You want to use
eTest.evaluateModelOnce()which would return a double value, the prediction for a singletestInstance. TheevaluateModel()method is intended for multiple instances.