[Numpy-discussion] SVD errors

Amir Mohammadi 183.amir@gmail....
Tue Jun 4 11:18:19 CDT 2013


Robert Kern <robert.kern <at> gmail.com> writes:

> 
> On Mon, Feb 9, 2009 at 16:25, M Trumpis <mtrumpis <at> berkeley.edu> wrote:
> > I played around with a C translation of that test program, and found
> > that dgesvd (but not dgesdd) happens to converge and return all
> > non-negative singular values for both operators I was having trouble
> > with. I'm also looking at the Octave code just now, and I think
> > they're using dgesvd also. Any one know why numpy uses dgesdd? speed?
> 
> Yes.
> 

Hello Everyone,

I am trying to write my own svd function to use the "dgesvd" method from 
lapack, but my problem is that I cannot find the "dgesvd" method from this 
import "from numpy.linalg import lapack_lite".

Do I have to install lapack on my system(Ubuntu 13.04 64-bit)? I want to get 
the same results as MATLAB 2011b which is why I am trying to write a slightly 
different svd function than the function from "numpy.linalg.svd".

I would appreciate your help, Thank you.
Amir





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