[Numpy-discussion] linalg.qr versus scilab qr
R. David
david at icps.u-strasbg.fr
Mon Jan 8 03:09:59 CST 2007
Hello,
In scilab, the QR decomposition can produce "sorted" Q and R matrices, where
diagonal elements of R are decreasing. Thus, a permutation vector E is returned,
so that X*E = Q*R.
Is there a way to compute such a permutation QR in numpy ? It seems that
numpy.linalg.qr does not sort the diagonal R elements.
Do I have to wrap around lapack's zgeqpf or zgeqp3 ?
Romaric
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