[SciPy-Dev] matrix_rank scipy version ?

josef.pktd@gmai... josef.pktd@gmai...
Tue Sep 3 13:56:38 CDT 2013


random question, while catching up with some linalg (matrix
decomposition and least squares with reduced rank)

scipy has rank-revealing (pivoting) QR for a few versions now.

Would it be worth it to add a scipy version of matrix_rank that uses
QR, instead of SVD as in numpy (IIRC)

What's the cutoff for a QR version?

Josef


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