Re: BetweennessCentrality

[ann <ann_kar_123 AT yahoo.com>]

Thanks Antonie,  for example below it gives "1" for each of the node. is that right? I thought it should be "0.5". 

 

Thanks,

Ann

 

   graph.addNode("A" );
   graph.addNode("B" );
   graph.addNode("C" );
   graph.addNode("D" );
   graph.addEdge("BA", "B", "A");
   graph.addEdge("AD", "A", "D");
   graph.addEdge("BC", "B", "C");
   graph.addEdge("CD", "C", "D");

--- On Fri, 12/17/10, Antoine Dutot <antoine.dutot AT gmail.com> wrote:

From: Antoine Dutot <antoine.dutot AT gmail.com>
Subject: Re: BetweennessCentrality
To: "ann" <ann_kar_123 AT yahoo.com>
Cc: graphstream-dev AT litislab.fr, graphstream-users AT litislab.fr
Date: Friday, December 17, 2010, 2:30 PM

Hi Ann,

After the algorithm execution, each node contains a "Cb" attribute for the betweeness centrality value:

for(Node node: graph) {

    System.out.println("Centrality of "+node.getId()+" = "+node.getNumber("Cb"));

}

You can also display these values in the graph viewer:

graph.display();

for(Node node: graph) {

    node.setAttribute("ui.label", String.format("%f", node.getNumber("Cb")));

}

Hope this helps,

Antoine

2010/12/17 ann <ann_kar_123 AT yahoo.com>

Hi, I downloaded the greaphstream tool and I would like to calculate he betweenness centrality of the graph.  I used  betweennessCentrality to

Compute the betweenness centrality on the given graph for each node.

 

could you please  let me know what command I need to use to print the centrality values of the  nodes.

 

Thanks,

Ann