At some point about a year ago I tried fixing the 2-d limitation and
managed to get a version working that took arbitrary dimensional
arrays. I don't remember how I did it exactly, but it wasn't
difficult. Basically I read the documentation on how both Matlab and
python stored their arrays and figured out a way to change the code so
that you were transferring the array information instead of the array
dimension by dimension. I believe both array representations
basically use a large flat array that stores the N-dimensional array
content and then a set of variables that store the information about
the number and size of the dimensions.
I never tested the code much or else I would have checked it back in.
By now, it's too late because the code base has changed too much from
the code that I originally altered.
Please let us know if you fix this. Also, I'd be happy to help and to
send you my old code.
Cheers,
Tal Tversky
ta...@cs...
Rolv Erlend Bredesen writes:
> Hi Guys,
> I want the "rank > 2 arrays" limitation fixed.
> If some of you have good hints I can look into it.
>
> Sincerely Rolv
>
>
> ---------- Forwarded message ----------
> Date: Mon, 18 Oct 2004 10:25:55 -0400
> From: Andrew Sterian <ste...@cl...>
> To: ro...@st...
> Subject: Re: pymat 3d support
>
> Hi Rolv,
>
> I don't really know how MATLAB works with higher dimension
> arrays. I also haven't really used the python-MATLAB connection
> in a long time. There is a new project on Sourceforge now
> at http://sourceforge.net/projects/pymat that has some developers
> that may be more informed.
>
> ro...@st... wrote:
> > Hi Andrew.
> > I'm using python a lot for numerical computing.
> > Especially using matlab as a backend for plotting has been very useful.
> >
> > Now I want to fix this limitation of pymat:
> >
> > """
> > The following limitations apply to the current version of PyMat:
> > 1. Only 1-D and 2-D double-precision (real or complex) MATLAB arrays
> > are supported (and single character strings). Matrices of higher
> > dimension, structure arrays, cell arrays, etc. are not yet supported.
> > """
> >
> > So I wonder if you could give me some hints on sending 3D, 4D and larger
> > arrays into matlab through pymat.
> >
> > (know about the reshape/flatten trix)
> >
> > I already understand most of the code and have compiled it myself.
> >
> > Sincerely Rolv
|
