Re: [Numpy-discussion] matrix rank of numpy array or matrix

On Tue, 5 Feb 2008 10:54:01 -0800 (PST) mark <markbak@gmail.com> wrote:

Hello -

Is there a function to compute the matrix rank of a numpy array or matrix? So I don't mean the current rank(), which gives the number of dimensions. I mean the number of independent equations of a matrix.

Thanks,

Mark _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion

AFAIK, a build-in function is (still) missing. However you might use a singular value decomposition to compute the numerical rank of a matrix. See e.g. http://osdir.com/ml/python.numeric.general/2006-02/msg00154.html Nils