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Re: [igraph] Community detection of weighted graphs and weighted modular
From: |
Gábor Csárdi |
Subject: |
Re: [igraph] Community detection of weighted graphs and weighted modularities |
Date: |
Thu, 12 Apr 2012 11:39:09 -0400 |
Hi,
On Thu, Apr 12, 2012 at 8:46 AM, R N <address@hidden> wrote:
> Hi,
>
> are the examples of community detection presented in
> http://igraph.wikidot.com/community-detection-in-r
> meant for unweighted graphs?
yes, it seems so.
> How can they be modified to use edge
> weights? Is it sufficient to add the
> appropriate parameter, e.g.:
label.propagation.community() does have an argument 'weights'. Please
see the manual:
http://igraph.sourceforge.net/doc/R/label.propagation.community.html
> ### label.propagation.community
> memberships$`Label propagation` <- label.propagation.community(G, E(G)$weight)
> ### and calculate modularity
> Q <- modularity (G, memberships$`Label propagation`, E(G)$weight)
modularity() also supports weights:
http://igraph.sourceforge.net/doc/R/modularity.html
[...]
--
Gabor Csardi <address@hidden> MTA KFKI RMKI