Hi,
First, thanks for all the answers! Waauw, really interesting discussion. I
have only basic Python skills, and never programmed in Cython (together
with a lot of time constraints, as most of you probably), but I would like
to give it a try to add new distance metrics to the brute force method.
Would it be possible to give some pointers to what should need to be
done/changed to add e.g. the keyword p as was mentioned in Jake's first
reply?
Cheers and thanks,
Mathias
On Thu, Jan 5, 2012 at 5:33 PM, Jacob VanderPlas <
[email protected]> wrote:
> Here's a small example I coded up that shows how I envision including
> multiple distance metrics in BallTree
>
> https://gist.github.com/1565998
>
> The idea is that you create functions to compute distance which expose C
> function pointers, so that the ball tree cython code can call these
> without python overhead. I'd be curious to hear peoples' thoughts
> Jake
>
> Gael Varoquaux wrote:
> > On Wed, Jan 04, 2012 at 07:59:04AM -0800, Jacob VanderPlas wrote:
> >
> >> If someone has a good idea about how one could specify these distance
> >> metrics from python code, with optional ancillary parameters, and
> >> convert these specifications into code for fast distance computation
> >> within cython,
> >>
> >
> > How about using small Cython classes with one or two methods? This is
> > what ended up working well for the decision trees (see _tree.pyx).
> >
> > Gael
> >
> >
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