Re: Memory exhausted when using \

[Mathieu Dubois]

Le 17/07/2012 11:48, Martin Helm a écrit :
> Am 16.07.2012 17:02, schrieb Mathieu Dubois:
>    
> > AFAI, if the system is not square A\b returns a minimum norm
> > solution... As I want the same output I need to compute the minimum
> > norm solution.
> >      
> Mathieu,
>
> did you simply try?
>
> X = lsqrSOL(rows(A), columns(A), A, b, 0, 1e-9, 1e-9, 1e8, 1000, 1);
>
> with the lsqrSOL I gave the link to, it is just a  .m file which you can
> put in your current working directory, no fancy installation or so needed.
> Since I am myself interested in that function and if you don't mind you
> can save your matrix and vector with octave's save command and upload it
> somewhere, I would then check how this function performs on your data.
>    
Hi Martin,

Sorry for the delay (I have a lot of other problems :).

I have installed lsqrSOL and used your snippet (except that I set atol = 
btol = 1e6). It seems to work (but it's rather slow compared to the 
matlab implementation which use \).

I will try to make sure that the results are similar.

Thanks for your help,
Mathieu