[R] question about SNA in R, thanks!

Gábor Csárdi csardi at rmki.kfki.hu
Sat Dec 27 11:36:05 CET 2008


see ?degree for the degree and ?cor for the correlation. E.g.

mixing <- function(g) {
  el <- get.edgelist(g)
  deg <- degree(g)
  cor(deg[el[,1]+1], deg[el[,2]+1])

You need to modify the degree() call to take edge direction into account.


ps. FYI, there is also an igraph missing list, in case I miss your
messages on R-help and nobody else answers either.

On Fri, Dec 26, 2008 at 5:48 PM, Weijia You <weijiawx at gmail.com> wrote:
> Dear colleagues,
> I'm trying to have a look at the Assortative and Disassortative (
> http://en.wikipedia.org/wiki/Assortative_mixing) of the network I have.
> But it seems that the igraph hasn't mentioned that yet.
> I have to get the in/out degree of the vertices of each edge and calculate
> the Pearson's Correlation coefficient which seems to be quite a huge task
> for me. :(
> So I wonder if anyone had done that before and give me some hints on it?
> Thank you in anticipation!
> Weijia
>        [[alternative HTML version deleted]]
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Gabor Csardi <Gabor.Csardi at unil.ch>     UNIL DGM

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