Method transform

mne/decoding/base.py:259–270

...

(self, X)

        return self

    def transform(self, X):
        """..."""
        check_is_fitted(self, "filters_")
        # Let the inheriting transformers check data by themselves
        if self._is_base_ged:
            X = self._check_data(X)
        if self.dec_type == "single":
            pick_filters = self.filters_[: self.n_components]
        elif self.dec_type == "multi":
            pick_filters = self._subset_multi_components()
        X = pick_filters @ X
        return X

    def _subset_multi_components(self, name="filters"):
        # The shape of stored filters and patterns is