[pymvpa] HyperAlignment error

Swaroop Guntupalli swaroopgj at gmail.com
Mon Jul 1 13:31:00 UTC 2013

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.


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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