[pymvpa] correlation between 2 matrices
Brian Murphy
brian.murphy at qub.ac.uk
Fri Oct 28 19:58:45 UTC 2016
If I understand your query correctly, I think numpy could do it, first
by flattening the matrices to simple vectors, and then calculating the
correlation between those, e.g.
np.corrcoef(np.array(matrix1).flatten(), np.array(matrix2).flatten())
... assuming you're using the matrix datatype. If they are vanilla 2D
arrays, then you shouldn't need to recast:
np.corrcoef(matrix1.flatten(), matrix2.flatten())
best,
Brian
On 28/10/16 20:44, David Soto wrote:
> hi,
>
> I wonder whether PyMVPA can compute a similarity index (correlation)
> between two 2D matrices, each comprised of 12 seconds & 300 voxels?
>
> thanks!
> david
>
>
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