WebJan 30, 2016 · Nov 7, 2012 at 21:34. Certain classifiers will predict a nominal type and others predict numeric types. You can view the list of classifiers for information on the type of class the classifier will predict as well as the type of attributes it will accept. – Richard D. Jun 29, 2013 at 14:12. Webweka.classifiers.bayes.NaiveBayes: Cannot handle numeric class! Code: DataSource source = new DataSource (dir + "training.csv"); trainingData = source.getDataSet (); trainingData.setClassIndex (trainingData.numAttributes () - 1); cModel = (Classifier)new NaiveBayes (); // it fails here cModel.buildClassifier (trainingData);
[Solved]-Java, Weka: NaiveBayesUpdateable: Cannot handle …
WebDec 1, 2016 · You should set class index of for your dataset before passing it into classifier. Your classifier must know which is your outcome variable. After these lines... loader.setQuery ("select * from data_training"); Instances data = loader.getDataSet (); Add the following: data.setClassIndex (data.numAttributes () - 1); Web(i.e., working only on nominal class problems), cannot handle your data? You're supplying a numeric class attribute after all. If your class attribute is indeed a nominal one (with discrete labels), then convert it to such one using the NumericToNominal filter (package weka.filters.unsupervised.attribute) or manually using a text editor. Cheers ... flying at night ted kooser
Why does a UnsupportedAttributeTypeException occur during ...
WebNov 27, 2014 · 1 I'm just taking a wild guess here: FilteredClassifier has an -F parameter by default which isn't defined in your command line. perhaps adding this parameter with the filter parameters as required by your model will overcome the Discretize error that was raised in Weka. Hope this Helps! Share Improve this answer Follow WebMay 17, 2013 · 1 I'm trying to obtain the best parameters for a one-class classifer using the wrapper of LibSVM under Weka. For this reason, I'm going to weka.classifiers.meta.GridSearch and then I select LibSVM one class. All data I'm using is labeled as the same class. The parameters I want to find are nu and gamma The … WebNov 4, 2014 · The class index indicates the target attribute used for classification. By default, in an ARFF file, it is the last attribute, which explains why it's set to numAttributes-1. When you use a classifier to classify a set of data to some class values, you gives an instance which has attributes of the data and an attribute which has the class ... greenlife grocery chattanooga