[SciPy-user] cond in lstsq(a, b, cond=None, overwrite_a=0, overwrite_b=0)

[Geoffrey Zhu]

Thanks Dmitrey!

On 10/23/07, dmitrey <dmitrey.kroshko at scipy.org> wrote:
> It uses LAPACK xGELSS routine (I guess prefix is 'D'), so you'd better
> contact LAPACK developers.
> BTW you could call the xGELSS routines from OpenOpt framework (see LLSP
> class), but w/o "cond" argument.
> Regards, D.
>
>
> Geoffrey Zhu wrote:
> > Good afternoon, everyone.
> >
> > I was trying to use lstsq() in scipy.linalg. The prototype looks like
> > the following:
> >
> >
> > def lstsq(a, b, cond=None, overwrite_a=0, overwrite_b=0)
> >
> > cond is said to be used to determine effective rank of a, but it does
> > not have any further explanation.
> >
> > Can anyone help me understand what exactly does cond do or where can I
> > find some more information on this?
> >
> > Thanks,
> > Geoffrey
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