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memb
2012 Feb 11
0
Using igraph: community membership of components built by decompose.graph()
...communities are numbered from 0
in each component, and I don't know
how to supply "weights" parameter into "walktrap.community" function.
If it were not for the components, I would have done the following:
wt <- walktrap.community(G, modularity=TRUE, weights=E(G)$weight)
wmemb <- community.to.membership(G, wt$merges,
steps=which.max(wt$modularity)-1)
V(G)$"walktrap" <- wmemb$membership
Could anyone please help me solve this issue? Or provide some
information/links which could help?
Thanks and best wishes,
Natalia
2010 Jun 11
2
Clustering algorithms don't find obvious clusters
I have a directed graph which is represented as a matrix on the form
0 4 0 1
6 0 0 0
0 1 0 5
0 0 4 0
Each row correspond to an author (A, B, C, D) and the values says how many
times this author have cited the other authors. Hence the first row says
that author A have cited author B four times and author D one time. Thus the
matrix represents two groups of authors: (A,B) and (C,D) who cites