CRUpdateable && HoeffdingTree

[Mali-DS]

Hi,
I am trying to use CRUpdateable for Multi target regression, and I found the CRUpdateable 's default classifier is HoeffdingTree, but when I call method as buildClassifier, it gives me this error:

weka.core.UnsupportedAttributeTypeException: weka.classifiers.bayes.NaiveBayesUpdateable: Cannot handle numeric class!

my code is here 👍
CRUpdateable classifier = new CRUpdateable();
HoeffdingTree ht = new HoeffdingTree();
classifier.setClassifier(ht);
classifier.buildClassifier(trainingInstances);

If the HoeffdingTree is not for regression why it is default classifier in CRUpdateable, and if it is for regression why it doesn't work?

Thanks
Mali

[jmread]

Indeed, Meka does not explicitly support regression yet. Note that CR = Classifier Relevance, and 'buildClassifier' indicates it is building a classifier.

Best,

Jesse

[Mali-DS]

Hi Jesse,
Thanks for your reply,
As I know Meka recently added MultiTargetClassifier to support regression, and CRUpdateable is one of classes to go in this way:( also it has MultiLabelClassifier to support classification)

public class CRUpdateable extends CR implements IncrementalMultiTargetClassifier

Regards,
Mali