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Re: [igraph] Modularity on the igraph_community_spinglass()
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From: |
Tamás Nepusz |
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Subject: |
Re: [igraph] Modularity on the igraph_community_spinglass() |
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Date: |
Fri, 22 Mar 2013 21:27:37 +0100 |
> Is it correct? Is this the generalized Newman modularity for weigthed
> networks? Can I trust it?
Well, try validating the modularity value with igraph_modularity() -- it also
supports weights and it calculates the Newman modularity. So, feed your weight
vector and the membership vector into igraph_modularity(), and if the result is
the same as the one you got from igraph_community_spinglass(), then the result
is probably correct. If not, well, that's worrying, so please file a bug report
with a small graph that reproduces the issue so we can investigate it.
Best,
Tamas