
From:  Ali Ilhan 
Subject:  Re: [igraph] help about extracting the largest connected component 
Date:  Wed, 16 May 2018 15:32:52 +0300 
Dear all,I am pretty new to igraph and R, and having some difficulties (long time Stata and SAS user). I have a graph of roughly 32000 vertices, which has a largest component of around 6200 connected nodes. All I want to do is to extract this as a new igraph object, and calculate some basic network metrics such as density, mean degree centrality etc.I have tried to various things which have been suggested before in this list, such as:giant.component < function(graph, ...) { cl < clusters(graph, ...) subgraph(graph, which(cl$membership == which.max(cl$csize)1)1) } tail.component < function(graph, ...) { cl < clusters(graph, ...) subgraph(graph, which(cl$membership != which.max(cl$csize)1)1) } But could not get the code to work. I have been mainly playing with induce.subgraph and decompose.
Any help is greatly appreciated.
Warm wishes,
ali
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