Parameters
        ----------
        raw_text, uncleaned text for parsing out features

        Returns
        -------
        csr_matrix, feature matrix

def feats_from_doc(self, raw_text):
        '''
        Parameters
        ----------
        raw_text, uncleaned text for parsing out features

        Returns
        -------
        csr_matrix, feature matrix
        '''
        parsed_text = self._nlp(self._clean_function(raw_text))
        X_factory = CSRMatrixFactory()
        X_factory.set_last_col_idx(self._term_idx_store.getnumvals() - 1)
        term_freq = self._get_features_from_parsed_text(parsed_text, self._term_idx_store)
        self._register_document_features_with_X_factory(X_factory, 0, term_freq)
        return X_factory.get_csr_matrix()