[pymvpa] cross-validation

[Yaroslav Halchenko]

On Mon, 15 Mar 2010, Jonas Kaplan wrote:
>    The categories are indeed imbalanced across chunks, which given your
>    previous paragraph is apparently something I need to keep a close eye
>    on.
you might take advantage of having
nperlabel='equal', nrunspersplit=something_none_1
for your splitter... thus way it would assure that you have equal number
of samples of each category by subselecting... nrunspersplit would
subsample multiple times...

>    Francisco, thanks for your clear explanation and those references look
>    like they will be very useful.
I am taking my hat as well in a gesture of gratitude to Francisco for
the nice references ;)

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