Passing numpy arrays to matlab
David Cournapeau
david at ar.media.kyoto-u.ac.jp
Tue Nov 7 22:07:08 EST 2006
Josh Marshall wrote:
> Hi David,
>
> Did you have a look at mlabwrap? It's quite hard to find on the net,
> which is a shame, since it is a much more up to date version,
> enhancing pymat with the things that you are trying to do. It allows
> passing arrays and getting arrays back.
>
> http://mlabwrap.sourceforge.net/
>
I didn't know that, thanks. Unfortunately, it is not really what I am
trying to do: mlabwrap is just a python interface a bit more high level
than pymat, with many fancy tricks, but still do copies. What I would
like is to avoid completely the copying by using proxy classes around
data from numpy so that I can pass "automatically" numpy arrays to
matlab C api, and a proxy class around data from matlab so that they
look like numpy arrays.
I don't care that much about the actual api from python point of
view, because I intend to use this mainly to compare matlab vs numpy
implementation, not as a way to use matlab inside python regularly. And
once the copy problem is solved, adding syntactic sugar using python is
easy anyway, I think (it should be easy to do something similar to
mlabwrap at that point),
cheers,
David
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