[pymvpa] Class weighting in unbalanced EEG data

Swaroop Guntupalli swaroopgj at gmail.com
Thu Apr 28 18:58:11 UTC 2016


One can also try Balancer()
http://www.pymvpa.org/generated/mvpa2.generators.resampling.Balancer.html

On Thu, Apr 28, 2016 at 11:47 AM, Yaroslav Halchenko <debian at onerussian.com>
wrote:

>
> On Thu, 28 Apr 2016, Ben McCartney wrote:
>
> >    Thank you for the quick reply Yaroslav, I substituted in GNB at your
> >    suggestion and it didn't seem to perform quite as well as the
> linearCSVMC
> >    method I was using without class weights. What kind of data have you
> been
> >    using it for? Perhaps it isn't so well suited to EEG data
>
> FWIW -- could well be... its naiveness could well be of a factor ;)
> it was some fMRI data I have used it on.
>
> --
> 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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