YangChaoKiKa

ValueError Traceback (most recent call last) in () 4 column_encoder = LabelEncoder() 5 column_encoder.fit(train[column].append(test[column])) ----> 6 train[column] = column_encoder.transform(train[column]) 7 test[column] = column_encoder.transform(test[column]) 8 /Users/xm/cs231/lib/python2.7/site-packages/sklearn/preprocessing/label.pyc in transform(self, y) 151 if...