Re: [R] highest eigenvalues of a matrix

From: Gabor Csardi <>
Date: Thu, 19 Jun 2008 09:21:41 -0500


the igraph ARPACK interface is quite experimental, and igraph includes only the ARPACK files (converted to C) that it needs to calculate some graph measures on sparse graphs. Btw. the development version of igraph is a bit better in this respect, I can send you a link to the development version if you think that can help...

Btw. what options would you need? (Sorry, it might have been in your previous mails that i haven't read....)


On Thu, Jun 19, 2008 at 03:12:50PM +0100, baptiste Auguié wrote:
> Dear all,
> Thank you for the suggestions and pointers. It looks like I'll need to do
> some interface with Fortran/C code. The igraph package seems to provide
> an interface with ARPACK, albeit not with the options I need, so it could
> be a good starting point.
> Best regards,
> baptiste

Csardi Gabor <>    UNIL DGM

______________________________________________ mailing list
PLEASE do read the posting guide
and provide commented, minimal, self-contained, reproducible code.
Received on Thu 19 Jun 2008 - 14:35:32 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Thu 19 Jun 2008 - 15:30:46 GMT.

Mailing list information is available at Please read the posting guide before posting to the list.

list of date sections of archive