Hi Jeremiah, Many thanks for the pointer, those gave me exactly what I needed! Cheers, Rupert -----Original Message----- From: boost-users-bounces@lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Jeremiah Willcock Sent: 27 September 2010 20:39 To: boost-users@lists.boost.org Subject: Re: [Boost-users] Boost Graphs - Betweenness Centrality On Mon, 27 Sep 2010, Rupert Ogilvie wrote:

Hi all,

I’m trying to implement the Betweenness Centrality Calculation in the Boost Graph Library. I’ve created a graph with the following attributes:

typedef adjacency_list Graph;

Graph G1;

But I’m struggling to get the Done object created right to pass into the calculation. If anyone has some example code or suggestions I’d be really grateful.

Apologies if this is a really basic question but I’m very new to C++ and Boost!

Which betweenness centrality algorithm are you using? Brandes' algorithm (http://www.boost.org/doc/libs/1_44_0/libs/graph/doc/betweenness_centralit y.html) does not seem to require a Done object. There is an example program for that algorithm in libs/graph/test/betweenness_centrality_test.cpp in the Boost source tree. Or do you mean betweenness_centrality_clustering? An example for it (including a correct Done object) is in libs/graph/example/actor_clustering.cpp in the Boost source tree. -- Jeremiah Willcock