[pymvpa] RSA/RDM cross-validated mahalanobis

[basile pinsard]

Hi Matteo,

thanks, that's great, I will give it a try.
Also do you think this can be used in a Searchlight?
Even with varying kwargs to give the spatial covariance matrix in case of
mahalanobis?

Thank you.

Basile

On Tue, Apr 25, 2017 at 12:13 PM, Matteo Visconti di Oleggio Castello <
matteo.visconti at gmail.com> wrote:

> Hi Basile,
>
> the new release of PyMVPA 2.6.1 introduces mvpa2.measures.rsa.CDist, that
> allows you to compute cross-validated RSA (https://github.com/PyMVPA/
> PyMVPA/blob/master/mvpa2/measures/rsa.py#L27), and you can specify which
> distance metric you want to use, with additional kwargs.
>
> Matteo
>
> On Tue, Apr 25, 2017 at 11:14 AM, basile pinsard <basile.pinsard at gmail.com
> > wrote:
>
>> Hi PyMVPA developers and users.
>>
>> I was wondering if there was a way in PyMVPA to use the approaches
>> described in this paper:
>> "Reliability of dissimilarity measures for multi-voxel pattern analysis"
>> were the use of cross-validated mahalanobis distance is advocated in
>> favor of correlation based RSA measures.
>>
>> Thank you.
>>
>> --
>> Basile Pinsard
>>
>> *PhD candidate, *
>> Laboratoire d'Imagerie Biomédicale, UMR S 1146 / UMR 7371, Sorbonne
>> Universités, UPMC, INSERM, CNRS
>> *Brain-Cognition-Behaviour Doctoral School **, *ED3C*, *UPMC, Sorbonne
>> Universités
>> Biomedical Sciences Doctoral School, Faculty of Medicine, Université de
>> Montréal
>> CRIUGM, Université de Montréal
>>
>> _______________________________________________
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>> Pkg-ExpPsy-PyMVPA at lists.alioth.debian.org
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>>
>
>
>
> --
> Matteo Visconti di Oleggio Castello
> Ph.D. Candidate in Cognitive Neuroscience
> Dartmouth College
>
> +1 (603) 646-8665 <(603)%20646-8665>
> mvdoc.me <http://www.mvdoc.me/> || linkedin.com/in/matteovisconti ||
> github.com/mvdoc
>
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>



-- 
Basile Pinsard

*PhD candidate, *
Laboratoire d'Imagerie Biomédicale, UMR S 1146 / UMR 7371, Sorbonne
Universités, UPMC, INSERM, CNRS
*Brain-Cognition-Behaviour Doctoral School **, *ED3C*, *UPMC, Sorbonne
Universités
Biomedical Sciences Doctoral School, Faculty of Medicine, Université de
Montréal
CRIUGM, Université de Montréal
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