[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: debug output of eigs?

From: David Bateman
Subject: Re: debug output of eigs?
Date: Wed, 18 May 2005 16:59:05 +0200
User-agent: Mozilla Thunderbird 0.8 (X11/20040923)

Keith Goodman wrote:

On 5/18/05, David Bateman <address@hidden> wrote:
In implementing eigs and trying to make it matlab compatible I've run
across an issue with the debugging output when opts.disp > 0 (default
value of 1 in matlab).

For what it's worth, I always set opts.disp to zero since I'm calling
eigs hundreds of time and since I don't understand what the output
means anyway.

My typical call is

OPTS.disp = 0;
[eigvec,eigval] = eigs(x,n,'LM',OPTS);

In this case the Ritz values are the approximate eigenvalues during the iterations of ARPACK, and so they give a good idea of the convergence of ARPACK. I agree though, I think the default value of disp of 0 makes more sense.

For what it is worth I have the above case completely working.


David Bateman                                address@hidden
Motorola Labs - Paris +33 1 69 35 48 04 (Ph) Parc Les Algorithmes, Commune de St Aubin +33 1 69 35 77 01 (Fax) 91193 Gif-Sur-Yvette FRANCE

The information contained in this communication has been classified as: [x] General Business Information [ ] Motorola Internal Use Only [ ] Motorola Confidential Proprietary

reply via email to

[Prev in Thread] Current Thread [Next in Thread]