[Pkg-exppsy-pymvpa] New splitter?

[Per B. Sederberg]

Beautifully!!

Thank you :)
P

On Mon, Apr 21, 2008 at 1:02 PM, Michael Hanke <michael.hanke at gmail.com> wrote:
> Hey,
>
>
>
>  On Mon, Apr 21, 2008 at 11:59:14AM -0400, Per B. Sederberg wrote:
>  > Howdy Michael:
>  >
>  > I having a little trouble with the new splitter.  I think everything
>  > is there to do what I'd like, but I can't figure it out based on the
>  > Splitter code.
>  >
>  > I have a custom dataset attribute called tasks and each TR's task is
>  > set to be 0,1, or 2 depending on what task the participant was
>  > performing at that time.  I'd like to return a single split of the
>  > data, training on the 0 and 1 tasks and testing on the 2 task.  I'd
>  > also like to ensure that the same number of each task are in the
>  > training dataset, but I don't care about the testing dataset.
>  >
>  > I think I have almost what I want with the following custom splitter:
>  >
>  > CustomSplitter([(None,[2])],nperlabel='equal')
>  >
>  > However, it looks like the nperlabel is getting applied to both the
>  > training and the testing samples.  The old splitter allowed you to
>  > apply this separately for the first and second samples via
>  > nfirstsamples and nsecondsamples, but it looks like this functionality
>  > was removed with the latest other improvements, which are totally
>  > awesome, BTW.
>  Glad you like them ;-)
>
>  This should solve your problem:
>
>         CustomSplitter([(None,[2])],nperlabel=['equal', 'all'])
>
>
>  Does it work?
>
>  Cheers,
>
>  Michael
>
>
>  --
>  GPG key:  1024D/3144BE0F Michael Hanke
>  http://apsy.gse.uni-magdeburg.de/hanke
>  ICQ: 48230050
>
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