[pymvpa] custom partitioner
Yaroslav Halchenko
debian at onerussian.com
Wed May 18 17:59:32 UTC 2016
On Wed, 18 May 2016, Wolfgang Pauli wrote:
> Hi!
> I found it on the mailing
> list:A http://lists.alioth.debian.org/pipermail/pkg-exppsy-pymvpa/2013q3/002550.html
thanks! I guess there is should be alright, since
[d for d in Splitter('partitions').generate(pset)]
generally (if only 2 partitions) would generate two splits, first one will be the
training, 2nd testing.
> On Wed, May 18, 2016 at 6:41 AM, Yaroslav Halchenko
> <debian at onerussian.com> wrote:
> On Wed, 18 May 2016, Wolfgang Pauli wrote:
> >A A Thank you for the explanation. This makes sense now. It was
> working well
> >A A within Cross-validation, but when I was calling Splitter later
> for a
> >A A manual sensitivity analysis, for which I had found a code
> snippet, the
> >A A analysis was using partitions 0 1 instead. So I got very
> different results
> >A A during cross-validation, in comparison to the later sensitivity
> >A A analysis.
> yeah -- that is worrisome... I wonder now why decided with 1, 2 and not
> 0, 1 ... heh heh... I wonder if we should change that ...
> But which snippet you have found?A is that something within
> PyMVPA?
--
Yaroslav O. Halchenko
Center for Open Neuroscience http://centerforopenneuroscience.org
Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755
Phone: +1 (603) 646-9834 Fax: +1 (603) 646-1419
WWW: http://www.linkedin.com/in/yarik
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