[pymvpa] HyperAlignment error

[Roberto Guidotti]

Thank you for you quick response,

As usual it was a little mistake, but I would like that you confirm my
mistake.
Using a stacked dataset I have the error, while using a list of dataset the
hyperalignment is running.

Btw I'll check also invariant features.

Thank you very much,

Roberto


On 1 July 2013 15:31, Swaroop Guntupalli <swaroopgj at gmail.com> wrote:

> Hi Roberto,
>
> Does it occur in ProcrusteanMapper?
> This error might be due to one of your datasets being invariant in time.
> Make sure the variance is non-zero for all of your voxels in all datasets.
> If not, remove those voxels (remove_invariant_features?) and re-run
> the hyperalignment.
>
> Best,
> Swaroop
>
> On Mon, Jul 1, 2013 at 9:16 AM, Roberto Guidotti <robbenson18 at gmail.com>
> wrote:
> > Hi all,
> >
> > I would like to run HyperAlignment algorithm using my dataset, but when I
> > try to run from example
> >
> > hypmaps = hyper(my_ds_train)
> >
> > I have the following exception
> >
> > ValueError: For now do not handle invariant in time datasets
> >
> > My (light version of) dataset is composed by 5 subject fMRI. I have
> > inspected your hyperalignment dataset and there are different information
> > about time_indices and time_coords and I have a simple block designed
> > experiments.
> > Are these the causes of the problem?
> >
> > Thank you
> > Roberto
> >
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