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[igraph] What exactly does igraph_transitivity_undirected() compute for
From: |
Szabolcs Horvát |
Subject: |
[igraph] What exactly does igraph_transitivity_undirected() compute for directed graphs? |
Date: |
Mon, 7 Dec 2015 11:05:20 +0100 |
Hello,
What precisely does igraph_transitivity_undirected() compute for
directed graphs?
The C documentation states that
"Directed graphs are considered as undirected ones."
but this is not exactly the case.
With an example using the R interface (for simplicity),
> g<-make_graph(c(1,2, 2,1, 2,3, 3,1))
> transitivity(g,"local")
[1] 0.3333333 0.3333333 1.0000000
> transitivity(as.undirected(g),"local")
[1] 1 1 1
Can someone clarify what precisely is computed in the directed case?
Szabolcs
- [igraph] What exactly does igraph_transitivity_undirected() compute for directed graphs?,
Szabolcs Horvát <=