Hi,
I am also using the following code, taken from igraph examples (
http://igraph.sourceforge.net/screenshots2.html#8) , to detect communities
in networks.
Could you please let me know what the nodes color and the red color of the
edges represent in this example? Thanks in advance!
library(igraph)
g <- read.graph("karate.net", format="pajek")
cs <- leading.eigenvector.community.step(g)
V(g)$color <- ifelse(cs$membership==0, "lightblue", "green")
scale <- function(v, a, b) {
v <- v-min(v) ; v <- v/max(v) ; v <- v * (b-a) ; v+a
}
V(g)$size <- scale(abs(cs$eigenvector), 10, 20)
E(g)$color <- "grey"
E(g)[ V(g)[ color=="lightblue" ] %--% V(g)[ color=="green" ] ]$color <-
"red"
tkplot(g, layout=layout.kamada.kawai, vertex.label.font=2)
Regards,
Narges
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