....

Remove rm = new Remove();
rm.setAttributeIndices(options3);
rm.setInputFormat(train);

train = Filter.useFilter(train, rm); // apply filter
if (train.classIndex() == -1) {
train.setClassIndex(train.numAttributes() - 1);
}


test = Filter.useFilter(test, rm); // apply filter
if (test.classIndex() == -1)
{
test.setClassIndex(test.numAttributes() - 1);
}


rm.setOptions(options2);
rm.setInputFormat(train);

newTrain2 = Filter.useFilter(train, rm); // apply filter
if (newTrain2.classIndex() == -1) {
newTrain2.setClassIndex(newTrain2.numAttributes() - 1);
}


newTest2 = Filter.useFilter(test, rm); // apply filter
if (newTest2.classIndex() == -1)
{
newTest2.setClassIndex(newTest2.numAttributes() - 1);
}


Classifier cls = new SMO();
....

weka.core.UnsupportedAttributeTypeException: weka.classifiers.functions.SMO: Cannot handle numeric class!

at weka.core.Capabilities.test(Capabilities.java:949)
at weka.core.Capabilities.test(Capabilities.java:1105 )
at weka.core.Capabilities.test(Capabilities.java:1018 )
at weka.core.Capabilities.testWithFail(Capabilities.j ava:1297)
at weka.classifiers.functions.SMO.buildClassifier(SMO .java:1251)