Re: debug output of eigs?

[David Bateman]

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.

D.

--
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