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From: | Judd Antin |
Subject: | [igraph] Alpha Centrality Function Crashes |
Date: | Thu, 24 Apr 2008 08:37:10 -0700 |
User-agent: | Thunderbird 2.0.0.12 (Windows/20080213) |
Hi all,I've been using igraph in R to look at a a very large, sparse directed network of about 58,000 nodes and 87,000 edges. I am interested in calculating alpha centrality scores, but the alpha.centrality function crashes R for me instantaneously. I've tried this on both Windows and Mac builds of the library (in case of a platform dependent issue), with the same results.
Does anyone have any insight on how I could get this to work? Is the size of the network simply too large? I also noticed in the manual that 'singular adjacency matrices' can cause problems for the algorithm, but I'm not sure what a 'singular adjacency matrix' is.
Any advice appreciated. Thanks! --Judd -- Judd Antin School of Information University of California Berkeley address@hidden web: http://technotaste.com blog: http://technotaste.com/blog
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