(self, X, Y, W, candidate_rule)
Refine rule.

        Parameters
        ----------
        X, Y : ndarray
            Learning data.
        candidate_rule : Rule
            Refine this rule.

        Returns
        -------
        rules : list of Rule
            Descendant rules of 'candidate_rule'.
Refine rule.
Refine rule .
def refine_rule(self, X, Y, W, candidate_rule):
        """
        Refine rule.

        Parameters
        ----------
        X, Y : ndarray
            Learning data.
        candidate_rule : Rule
            Refine this rule.

        Returns
        -------
        rules : list of Rule
            Descendant rules of 'candidate_rule'.
        """
        raise NotImplementedError
def refine_rule ( self , X , Y , W , candidate_rule ) : raise NotImplementedError