Add a ClassAssigner
filter at the end of your MultiFilter array. When Info gain changes the number of attributes, the class index isn't updated, so you're getting array out of bounds errors.
Exception: Filter didn't make the test instance immediately available
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19-06-2023 - |
Question
I am using the classifier FilteredClassifier in WEKA. The Filter of my classifier is a MultiFilter, doing first InfoGain, and then Standarization. After training the classifier, when trying to classify the test instances on the fly, I get the error: java.lang.Exception: Filter didn't mkae the test instance immediately available!
Anyone knows how to fix this?
Solution
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