[R] Understanding mod.matrix for directed networks

[Gábor Csárdi]

I am sorry for the slow response. Please note that these are better
channels for igraph help: http://igraph.org/r/#help

As for your question, can you please send some R code that
demonstrates your problem?

Gabor

On Tue, May 19, 2015 at 1:50 AM, Aziz, Muhammad Fayez
<aziz4 at illinois.edu> wrote:
> Dear Gabor,
>
>
>
> Please find attached an Excel file with detailed information on a four node
> directed network to calculate its pairwise modularity matrix using igraph:
> mod.matrix(). I have tried multiple combinations to figure out how the
> formula works or is applied but failed to find consistency, specially for
> the pairs of arcs in opposing directions where the pairwise modularity is
> different (highlighted and color-coded). I gave membership(wtc) as input to
> mod.matrix() but not even sure if its used in the formula provided in the
> following R manual page:
>
>
>
> http://igraph.org/r/doc/modularity.html
>
>
>
> Advice with a solved example in the Excel sheet would be deeply appreciated.
>
>
>
> Thanks and regards,
>
> Fayez
>
> University of Illinois at Urbana Champaign, USA