From diedrich at math.uni-potsdam.de  Fri Mar  9 16:09:28 2012
From: diedrich at math.uni-potsdam.de (Holger Diedrich)
Date: Fri, 09 Mar 2012 16:09:28 +0100
Subject: [Rd] Eigenvalue calculation of sparse matrices
Message-ID: <4F5A1D28.7090502@math.uni-potsdam.de>

Dear all,

I am currently working on the calculation of eigenvalues (and -vectors) 
of large matrices. Since these are mostly sparse matrices and I remember 
some specific functionalities in MATLAB for sparse matrices, I started a 
research how to optimize the calculation of eigenvalues of a sparse matrix.
The function eigen itself works with the LAPACK library which has no 
special handling for sparse matrices, same for the EISPACK library. The 
ARPACK library is capable to work with sparse matrices but I couldn't 
find any useful R package using ARPACK.
The Matrix package can handle sparse matrices but has no further useful 
functionalities (concerning my tasks).

Does one of you have any advice how to optimize the eigenvalue 
calculation of sparse matrices in R?

Thanks in advance,
Holger



[Rd] Eigenvalue calculation of sparse matrices
Holger Diedrich