|From:||Morais, Ana Sofia|
|Subject:||[igraph] pagerank using igraph 0.6|
|Date:||Fri, 10 Jun 2011 17:10:22 +0200|
Following the recommendation of Tamas Nepusz, I am now using igraph 0.6 to calculate the PageRank of the vertices in a series of graphs. The code runs without any warnings now, but it returns awkward values for one of the graphs. Could it be that I am doing something wrong? Please see the code below.
Thanks for your help.
m <- matrix (c(0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0), nrow=9, ncol=9)
tm <- t(m)
net = graph.adjacency(tm, mode="directed", weighted=NULL)
pr = page.rank (net, directed = TRUE, damping = 0.85, weights = NA)$ vector
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