[SciPy-user] array vs matrix, converting code from matlab

Bill Baxter wbaxter at gmail.com
Fri Apr 21 01:12:04 CDT 2006

Yeh, I'm not so interested in having a PyNetlab per se, i.e. api-for-api
equivalent, as much as having similar functionality.  But I reckon copying
the design and organization of something that already exists would be faster
than doing it completely from scratch.

The bits I use are GMM, Gaussian Processes, RBF networks, (P)PCA.  But I
guess that's probably the bulk of the code right there.  Anyway, I can
dream, can't I?  :-)


On 4/21/06, David Cournapeau <david at ar.media.kyoto-u.ac.jp> wrote:
> Bill Baxter wrote:
> > By the way, I'd be interested in an n-dimension Gaussian function for
> > NumPy/SciPy too.
> >
> > Anyone else interested in machine learning and or bayesian methods?  A
> > port of Netlab ( http://www.ncrg.aston.ac.uk/netlab/index.php) in
> > SciPy would be great.
> Actually, I am porting a code for Gaussian Mixture Models with batch and
> online EM. I first try to do a pure python version to get an idea on
> scipy capabilities, and then I intend to create the stub to a C
> implementation (which already exists for matlab, the core being
> independant of matlab). I am  hoping to have a much cleaner
> implementation, and more extensible (ie using other pdf, and why not
> more general models) using python
> languages capabilities (module, inheritance, etc...).
> I think porting netlab would be a huge task, and quite difficult; there
> is also torch (http://www.torch.ch/) which may be interesting to use
> (C++ code, BSD license). Having a machine learning tool box would be a
> step forward for scipy, I guess.
> David
> ____________
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