owkmeans.py 文件源码

def concat_x_y(self):
        """
        Function takes two selected columns from data table and merge them in
        new Orange.data.Table

        Returns
        -------
        Orange.data.Table
            table with selected columns
        """
        attr_x = self.data.domain[self.attr_x]
        attr_y = self.data.domain[self.attr_y]
        cols = []
        for attr in (attr_x, attr_y):
            subset = self.data[:, attr]
            cols.append(subset.Y if subset.Y.size else subset.X)
        x = np.column_stack(cols)
        not_nan = ~np.isnan(x).any(axis=1)
        x = x[not_nan]  # remove rows with nan
        self.selected_rows = np.where(not_nan)
        domain = Domain([attr_x, attr_y])
        return Table(domain, x)