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Re: [igraph] Number of isolated nodes in the network
From: |
jordi torrents |
Subject: |
Re: [igraph] Number of isolated nodes in the network |
Date: |
Thu, 5 Aug 2010 16:56:45 +0200 |
Hi Claudia,
2010/8/5 Claudia Muller-Birn:
> Dear all,
>
> I might have a fairly simple question but I have difficulties to solve my
> problem this time.
> I'd like to compute the number of isolates nodes in a network. [...]
The function below gives you a vector with the ids of nodes with
degree 0 (ie isolates):
isolates <- function(g){
return(which(degree(g)==0)-1)
}
i <- isolates(g)
length(i)
Hope this helps.
Salut!