solution_classes.py 文件源码

def filter_sort_unique(self, max_objval=float('Inf')):
        # filter
        if max_objval < float('inf'):
            good_idx = self.objvals <= max_objval
            self.objvals = self.objvals[good_idx]
            self.solutions = self.solutions[good_idx]

        if len(self.objvals) > 0:
            sort_idx = np.argsort(self.objvals)
            self.objvals = self.objvals[sort_idx]
            self.solutions = self.solutions[sort_idx]

            # unique
            b = np.ascontiguousarray(self.solutions).view(
                np.dtype((np.void, self.solutions.dtype.itemsize * self.P)))
            _, unique_idx = np.unique(b, return_index=True)
            self.objvals = self.objvals[unique_idx]
            self.solutions = self.solutions[unique_idx]