Hi,
I’m new with igraph (and R). I’ve created a graph with g15 <- graph_from_data_frame(SERs, directed = T, vertices = attr). „SERs“ is a weighted graph (the third column is called weigth). „Attr“ contains
a vertex attribute M which identifies to which community or module a vertex belongs.
How can I get the modularity of this clustering?
I tried unsuccessfully: modularity(g15, g15$M, weights = g15$weight, ) .
Any help?
Thanks
Per