コード例 #1
0
    def score_data(self, data, feature):
        if len(data.domain.class_vars) != 1:
            raise ValueError('RReliefF requires one single class')
        if not data.domain.class_var.is_continuous:
            raise ValueError('RReliefF supports regression; use ReliefF '
                             'for classification')

        from Orange.preprocess._relieff import rrelieff
        weights = np.asarray(rrelieff(data.X, data.Y,
                                      self.n_iterations, self.k_nearest,
                                      np.array([a.is_discrete for a in data.domain.attributes])))
        if feature:
            return weights[0]
        return weights
コード例 #2
0
ファイル: score.py プロジェクト: marinkaz/orange3
    def score_data(self, data, feature):
        if len(data.domain.class_vars) != 1:
            raise ValueError('RReliefF requires one single class')
        if not data.domain.class_var.is_continuous:
            raise ValueError('RReliefF supports regression; use ReliefF '
                             'for classification')

        from Orange.preprocess._relieff import rrelieff
        weights = np.asarray(rrelieff(data.X, data.Y,
                                      self.n_iterations, self.k_nearest,
                                      np.array([a.is_discrete for a in data.domain.attributes])))
        if feature:
            return weights[0]
        return weights
コード例 #3
0
    def score_data(self, data, feature):
        if len(data.domain.class_vars) != 1:
            raise ValueError("RReliefF requires one single class")
        if not data.domain.class_var.is_continuous:
            raise ValueError("RReliefF supports regression; use ReliefF "
                             "for classification")
        if isinstance(self.random_state, np.random.RandomState):
            rstate = self.random_state
        else:
            rstate = np.random.RandomState(self.random_state)
        from Orange.preprocess._relieff import rrelieff

        weights = np.asarray(
            rrelieff(
                data.X,
                data.Y,
                self.n_iterations,
                self.k_nearest,
                np.array([a.is_discrete for a in data.domain.attributes]),
                rstate,
            ))
        if feature:
            return weights[0]
        return weights