I'm also having trouble with Nearest neighbor, although not sure if its
related. I'm doing a regression, and everytime I see that particular
warning, one or more of my predicted values ends up with a value of 'nan'.
I checked my inputs and none of them are nan.If I can create a small sample
that shows this I'll send it.
Cheers !
On Mon, Jan 23, 2012 at 3:54 PM, Jacob VanderPlas <
vanderp...@astro.washington.edu> wrote:
> I played around with this a bit: it appears to be related to a memory
> error.
> https://gist.github.com/1666570
> This fails after a few iterations. If the print statement is
> uncommented, then it no longer fails.
>
> The ball tree code uses a lot of raw memory views for speed... I'll have
> a look through it to try to figure out where the problem is.
> Jake
>
> Andreas wrote:
> > On 01/23/2012 10:38 PM, Andreas wrote:
> >
> >> Hi everybody.
> >> I created a gist to illustrate the behavior:
> >> https://gist.github.com/1665623
> >> This reproduces a warning that is quite weird.
> >>
> >> After trying it out for some time, I found
> >> the following fun fact:
> >> It behaves only like it does when the manifold
> >> module is imported.
> >> So if you remove the manifold import from the gist,
> >> it runs fine.
> >>
> >> Any ideas?
> >>
> >>
> >>
> > Small update:
> > The error actually depends on
> > ``from sklearn.utils import graph_shortest_path``
> > Which is a cython module.
> >
> > Could it be that the DTYPE variable there overwrite a DTYPE variable
> defined
> > somewhere in the kneigbors module or something like that?
> >
> > btw, my doctests don't work any more.
> > Any one else experiencing that?
> >
> > Cheers,
> > Andy
> >
> >
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