Change edge thickness in igraph plot R according to Edge Attributes

Question

I want to change the edge width of my graph to correspond to the edge.betweenness score.

 net <- read.csv("D:/SNA/R/Net.csv")
 att <- read.csv("D:/SNA/R/Att.csv")
 g <- graph.data.frame(net, vertices=att, directed=TRUE)
 pdf("Network.pdf", pointsize=8)
 plot(g, vertex.label=NA, vertex.size=3, edge.width=edge.betweenness(g))
 dev.off()

I have also tried creating the edge betweenness score as an edge weight and assigning it to edge.width argument in the plot function as follows;

plot(g, vertex.label=NA, vertex.size=3, edge.width=E(g)$width

Can you provide some sample data I can use to re-create your graph — Christie Haskell Marsh, Mar 10 '14 at 13:26
Your example should work. Maybe you don't see the difference, because the edge betweenness scores are close to each other. We actually don't even know what you see, what the problem is..... — Gabor Csardi, Mar 10 '14 at 13:48
Error that I get is; Error in i.parse.plot.params(graph, list(...)) : Unknown edge parameters: weight — P Mcquiy, Mar 11 '14 at 05:29
Why not put simple replica for Net.csv and Att.csv so that all R community can make use of this question better. See, e.g., `set.seed(1); data.frame(replicate(4, rnorm(100)))` — Erdogan CEVHER, Nov 14 '16 at 08:01

score 15 · Answer 1 · answered May 10 '15 at 19:37

15

Your example should work. Alternatively, you can write

E(g)$weight <- edge.betweenness(g)

before the plotting function.

answered May 10 '15 at 19:37

Piotr Migdal

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Change edge thickness in igraph plot R according to Edge Attributes

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