Re: [igraph] Betweenness centrality issue

[Marco Antoniazzi]

Hi gabor, here is how I import the matrix and calculate the betweenness. 

TabA <- read.csv("~/Desktop/DATI TOTALI/MATRICI INIZIALI/2006/T1_011 copia.TXT")

network <- as.matrix ( TabA )

networkg <- graph.adjacency ( network, mode=c("directed"), weighted = TRUE ) 

networkbet <- betweenness ( networkg, directed = TRUE, weights = E ( networkg )$weight )

is it ok now or you need something else?

thanks

Marko

2013/5/16 Gábor Csárdi <address@hidden>

Again, please send some self-contained code. Maybe you are not creating the graphs you intended to, maybe you create a graph with multiple edges, and that's not what you want. Hard to guess. It is much easier if you show your complete code that generates the results you don't like.

Gabor

On Thu, May 16, 2013 at 2:42 AM, Marco Antoniazzi <address@hidden> wrote:

Hi gabor,

you can try with these two matrices, one is weighted and the other binary.

thanks

Marko

2013/5/16 Gábor Csárdi <address@hidden>

On Mon, May 13, 2013 at 2:35 AM, Antoniazzi Marco <address@hidden> wrote:

thank you Gabor,

I don't understand the difference between weights=NULL and weights =TRUE then when I create a graph object.

Sorry, my bad, I probably misunderstood your question. Can you please send some self-contained code, ie. that has everything and I can run it? Your code does not have the matrices, so I cannot reproduce your problem. Thanks.

Gabor

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Gabor Csardi <address@hidden>     MTA KFKI RMKI

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