Method _iter_test_indices

sklearn/model_selection/_split.py:217–223

(self, X, y=None, groups=None)

    """

    def _iter_test_indices(self, X, y=None, groups=None):
        n_samples = _num_samples(X)
        if n_samples <= 1:
            raise ValueError(
                "Cannot perform LeaveOneOut with n_samples={}.".format(n_samples)
            )
        return range(n_samples)

    def get_n_splits(self, X, y=None, groups=None):
        """Returns the number of splitting iterations in the cross-validator.