[SciPy-dev] Why does orth use svd instead of QR ?

Charles R Harris charlesr.harris@gmail....
Fri Feb 5 10:53:25 CST 2010


On Fri, Feb 5, 2010 at 2:45 AM, David Cournapeau <david@silveregg.co.jp>wrote:

> Charles R Harris wrote:
> >
> > Maybe the way to
> > go is use a keyword to choose between methods.
>
> 'safe' vs 'fast' ? :)
>
> I wonder whether it would be ok to change the default to QR, though. I
> will look at the pivoted QR thing,
>
>
That sounds OK. The documentation should probably mention that the
orthogonal columns produced by the two methods will be different, otherwise
we will probably get some bug reports.

Chuck
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