Re: [igraph] Correlating nodes with high betweenness

[anupam sinha]

Hi all,
          Thanks a lot  for your suggestions. I am getting some problems in implementation though. I have tried the following codes in R . But none seem to be working.....

1.
> subg<-subgraph(met_eco,(betweenness=betweenness(met_eco))>5000)
> subg
Vertices: 2 
Edges: 2 
Directed: TRUE 
Edges:
                              
[0] 'eco:b4069' -> 'eco:b4069'
[1] 'eco:b4069' -> 'eco:b1241'

2.
      > subg<-subgraph(met_eco,betweenness(met_eco)>5000)

> subg
Vertices: 2 
Edges: 2 
Directed: TRUE 
Edges:
                              
[0] 'eco:b4069' -> 'eco:b4069'
[1] 'eco:b4069' -> 'eco:b1241

On Tue, Dec 8, 2009 at 5:23 AM, Arun <address@hidden> wrote:

betweenness_list = g.betweenness()
your_answer = []
for e in g.es:
   v1 = e.tuple[0]
   v2 = e.tuple[1]
   if betweenness_list[v1] > threshold and betweenness_list[v2] > threshold:
       your_answer.append(e)

On Mon, Dec 7, 2009 at 10:29 AM, anupam sinha <address@hidden> wrote:
>
> Hi all,
>           I have a network of the following format :
>
> eco:b4069 eco:b4069
> eco:b4069 eco:b1241
> eco:b4069 eco:b0115
> eco:b4069 eco:b3256
> eco:b4069 eco:b0185
> eco:b4069 eco:b2316
>
> where each of the alphanumeric value is a node id. I calculate the
> betweenness of the nodes. My query though is how do I find pairs of nodes
> which are connected to each other and have betweenness values above a
> certain threshold ?
> Thanks in advance.
>
>
> Regards,
>
>
> Anupam
>
>
>
>
>
>
>
>

> _______________________________________________
> igraph-help mailing list
> address@hidden
> http://lists.nongnu.org/mailman/listinfo/igraph-help
>
>


_______________________________________________
igraph-help mailing list
address@hidden
http://lists.nongnu.org/mailman/listinfo/igraph-help

-- 
Graduate Student,
Laboratory of Computtational Biology,
Centre For DNA Fingerprinting And Diagnostics,
4-1-714 to 725/2, Tuljaguda complex
Mozamzahi Road, Nampally,
Hyderabad-500001