[R] help finding edge connecting two nodes

Gábor Csárdi csardi at rmki.kfki.hu
Sat Oct 20 02:11:53 CEST 2012

On Fri, Oct 19, 2012 at 2:50 PM, Dhaval Adjodah <nuclearr.d at gmail.com> wrote:
> Your way works best! Another way I found from stackoverflow (see the post
> at
> http://stackoverflow.com/questions/12964332/igraph-edge-between-two-vertices/12980550#12980550)
> was
> to convert the graph into an adjacency matrix and then use simple matrix
> indices .

Just make this clear. The example (repeated below) on the
stackoverflow page does _not_ convert the graph into an adjacency
matrix. The indexing only makes the graph look as if it was an
adjacency matrix. But there is no conversion at all.


ps. I would appreciate if you didn't cross-post your questions
everywhere (R-help, igraph-help and stackoverflow, maybe other places
as well). Please only post it on the platform you prefer first and
then, if you don't get a good answer, try elsewhere. Thanks!

g <- graph.ring(10)
# [1] 1
E(g)$weight <- runif(ecount(g))
# [1] 0.8115639


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