graph_service.py 文件源码

def __reduce_vertex_metrics(self, metrics, is_property_map = True):
        """
        Calculate mean, min, max and median of given vertex metrics 
        :param metrics: Metric values of vertexes
        :param is_property_map: Is metrics PropertyMap (list otherwise)
        :return: Dict of reduced metrics
        """
        statistics = collections.OrderedDict()
        if is_property_map:
            metrics = metrics.get_array() # Get a numpy.ndarray subclass (PropertyArray)

        statistics["mean"] = metrics.mean()
        statistics["min"] = metrics.min()
        statistics["max"] = metrics.max()
        statistics["median"] = np.median(metrics)

        return statistics