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From: | Robin Cowan |
Subject: | [igraph] making random graphs from matrices |
Date: | Thu, 23 Feb 2012 11:40:09 +0100 |
Dear List,Is there a simple way of taking a square (symmetric) matrix of reals and generating a random graph of fixed density using that matrix as the (relative) probability of a particular link forming.
I am using igraph inside R.It seems one way to do that would be with a two-dimensional version of the sample() statement, to create an adjacency matrix, but I can't find documentation on that.
It also seems related to igraph's preference.game() but I can't see a way there to control density
Thanks for your help. Robin Cowan
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