Message-ID: <51790452-D6E3-40BC-B616-1052FC4100AC@berkeley.edu>
Date: 2011-05-29T19:59:53Z
From: David Holstius
Subject: rectangular adjacency matrix/list: geo or graph packages?
Hi all,
I'm searching for an efficient, preferably prepackaged, way to compute and store a rectangular adjacency matrix in R. All I'm using it for is to screen out a large number of unnecessary computations. I have no need for weighted edges, and the matrix would be pretty sparse. I found this thread from 2007:
<https://stat.ethz.ch/pipermail/r-sig-geo/2007-May/002092.html>
Has anyone tackled this problem using the 'igraph' package? Or have recommendations for another library to use or keep an eye on?
Many thanks,
David
--
David Holstius
PhD Student in Environmental Health Sciences
UC Berkeley School of Public Health