Tamas, thanks, in fact edge.betweenness.community was my first choice... but when I try:
edge.betweenness.community(g, weights=E(g)$myweights, directed=TRUE) I have: Graph community structure calculated with the edge betweenness algorithm Number of communities (best split): 1 Modularity (best split): 0 with igraph 0.6, and a network of 56 nodes and 813 edges... should I fine-tune something? looks like just one community exists... best, Simone 2012/5/21 Tamás Nepusz <[email protected]>: > Hello Simone, > > The walktrap algorithm is not suitable for directed graphs (despite its > reliance on random walks). The authors of the walktrap algorithm conclude > this in their original paper: > > "For directed ones (like the important case of the web graph), on the > contrary, the proofs we provided are not valid anymore, and random walks > behave significantly differently. Therefore, we also consider the directed case > as an interesting direction for further research." > http://arxiv.org/pdf/physics/0512106v1.pdf > > Best,-- > T. > > > On Monday, 21 May 2012 at 09:56, Simone Gabbriellini wrote: > >> Hello list, >> >> is there the possibility to tell walktrap.community to take into >> account my network is directed? >> >> igraph 0.5.4 >> >> best, >> Simone >> >> -- >> Dr. Simone Gabbriellini >> >> DigitalBrains srl >> Amministratore >> Head R&D >> >> mobile: +39 3403975626 >> mail: [email protected] (mailto:[email protected]) >> >> _______________________________________________ >> igraph-help mailing list >> [email protected] (mailto:[email protected]) >> https://lists.nongnu.org/mailman/listinfo/igraph-help > > > > > _______________________________________________ > igraph-help mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/igraph-help -- Dr. Simone Gabbriellini DigitalBrains srl Amministratore Head R&D mobile: +39 3403975626 mail: [email protected] _______________________________________________ igraph-help mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/igraph-help
