[pymvpa] Error running dissimilarity analysis

[Michael Hanke]

On Thu, Dec 17, 2009 at 05:52:54PM -0600, Michael W. Cole wrote:
> Hi Michael,
> 
> I tried running the script on other datasets and they seem to work fine.
> I've run into this sort of thing several times so far with PyMVPA (i.e.,
> cases where a classifier will run for one subject but crash for others).
> 
> Did you inspect the dataset that it is somewhat "sane"? What does
> >  print blockavged_dataset.summary() say?
> >
> 
> Yes, the data looks fine. In fact, I've run the same data with several other
> classifiers and they worked fine. Further, the data will run with the
> searchlight for several spheres, and only crash when it hits an especially
> small one (4 voxels). I'm not sure if it's an issue with the number of
> voxels or not. (I imagine it must've hit similarly small feature sets for
> the other subjects it worked for.)
> 
> Any idea what could be causing this?

Not really -- If you could provide the data in question we could debug
it. Maybe it is possible to trim it down into a resonable size, if it is
a large one.

Michael



-- 
GPG key:  1024D/3144BE0F Michael Hanke
http://mih.voxindeserto.de