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[igraph] q values from community_fastgreedy() method

From: venura.2.mendis
Subject: [igraph] q values from community_fastgreedy() method
Date: Mon, 21 Jul 2008 16:53:11 +0100


Ive been trying to generate a dendogram by clustering my data. The
method community_fastgreedy(self, weights=None) appears to be a good
choice- well am still in the stage of experimenting! And when I run the
plot method it produces a dendogram. However I would also like to get
hold of the q values (Network modularity for each split as described in
the ref paper) to get an idea of the best community structure for my
This method only appears to return the final q value. The class GaphBase
appears to have exactly what Im after in the method
(community_fastgreedy(weights=None, return_q=True)- according to the
docs this returns a tuple of merges and Q values. However the
documentation suggests I should use only the method from Graph and as
far as I can tell this doesn't retrun q values of each merge.

I'd appreciate any help/comments


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