def transform(self, X):
        if self.voting == 'soft':
            return self._predict_probas(X)
        else:
            return self._predict(X)
check for existance of this key
dataset/ETHPy150Open rasbt/mlxtend/mlxtend/classifier/ensemble_vote.py/EnsembleVoteClassifier.transform--crossover with--dataset/ETHPy150Open pydata/pandas/pandas/io/pytables.py/HDFStore.__contains__