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From: | Gábor Csárdi |
Subject: | Re: [igraph] How to get the vertex itself not the index |
Date: | Sat, 15 Nov 2014 10:06:56 -0500 |
Hi,I would like to get the neighborhood of each vertex and get the community membership of each of them and the size of the each community which each vertex belong to , please consider this example :karate <- graph.famous("Zachary")karate <-as.matrix(karate)
wckarate <- walktrap.community(karate)neigh_com <-sapply(graph.neighborhood(karate,1,nodes=V(karate)),function(g,x) {membership(wckarate)[V(g)] })neigh_size <-sapply(graph.neighborhood(karate,1,nodes=V(karate)), function(g) {sizes(wckarate)[membership(wckarate)[V(g)] })
the problem is that it is working with the index rather than the each vertex id itself, and when I use graph.neighborhood it will index each vertex all over again so it is all wrong how to avoid this ?
thank you in advance,fatemeh--regardsF..Aᐧ
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