Origin-Destination Betweenness Centrality (2.2.4)

IN: The hot spot vertex ID is used as the start vertex ID.
OUT: The hot spot vertex ID is used as the end vertex ID.

**Table 1** parameters parameter description
Parameter	Mandatory	Description	Type	Value Range	Default Value
directed	No	Whether an edge is directed	Boolean	The value can be true or false	true
weight	No	Weight of an edge	String	The value can be an empty string. If this parameter is left blank, the weight and distance of this edge are 1 by default. You can set this parameter to a property of the edge, and the property value will be the weight. If the edge does not have the specified property, the weight is 1 by default. NOTE: The weight of an edge must be greater than 0.	-
OD	No	Start vertex and end vertex pair (origin-destination)	String	The value must be in the standard CSV format. The start vertex (origin) and end vertex (destination) are separated by commas (,), and the start and end vertex pairs are separated by newline characters (\n), for example, Alice,Nana\nLily,Amy.	-
seeds	No	ID of the hot spot vertex.	String	If OD is not set, the seeds data will be used.	-
modes	No	Hot spot vertex type.	String	IN: The hot spot vertex ID is used as the start vertex ID. OUT: The hot spot vertex ID is used as the end vertex ID.	-
capacity	No	Number of participants at each hot spot in seeds.	Integer	-	-

Either OD_pairs or seeds must be specified. If they are both specified, the OD_pair value prevails.

**Table 2** response_data parameter description
Parameter	Type	Description
betweenness	List	Betweenness value of each edge. The format is [{"source":sourceId,"target":targetId,"index":indexValue,"betweenness":betweennessValue}, ...]. betweennessValue is of the double type.