[pymvpa] Example Dataset

[Per B. Sederberg]

Okeydokey!  I'll try it out and let you know if the generalization
performance improves.  It's already pretty darn good for most classes,
but I'll focus on a hard one.

Thanks,
P

At Tue, 13 Jan 2009 22:00:25 -0500,
Yaroslav Halchenko wrote:
> 
> I guess it wouldn't be too hard to figure it out empirically (atm I
> can't recall what was actually done -- I think indeed they are not
> corrected for HRF since Haxby was interested in block averages):
> just shift labels by 1,2,3 samples and see when the generalization
> performance is the best ;) should be 1 line addition to smth like
> http://www.pymvpa.org/ex/start_easy.html
> 
> On Tue, 13 Jan 2009, Per B. Sederberg wrote:
> 
> > Hi Everybody:
> 
> > I just wanted to check to see whether the labeled samples (listed in
> > attributes_literal.txt) in the Haxby et al. (2001) example subject are
> > shifted to the peak hemodynamic response or if one must perform some
> > type of shifting (i.e., convolving with HRF) to line up the samples
> > with the presented image.
> 
> > Although I assume they are shifted because none of the examples
> > perform this step to line up the labels with one would expect the peak
> > brain activity, I was unable to confirm this from the download page:
> > http://www.pymvpa.org/examples.html#exampledata
> 
> > Thanks,
> > Per
> 
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> 
> 
> -- 
> Yaroslav Halchenko
> Research Assistant, Psychology Department, Rutgers-Newark
> Student  Ph.D. @ CS Dept. NJIT
> Office: (973) 353-1412 | FWD: 82823 | Fax: (973) 353-1171
>         101 Warren Str, Smith Hall, Rm 4-105, Newark NJ 07102
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> 
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