2012/1/29 Michael Waskom <[email protected]>:
> Aha, this does indeed suggest something strange:
>
> http://web.mit.edu/mwaskom/www/pca.png
>
> I'm going to dig into this some more, but I don't really have any
> strong intuitions to guide me here so if anything pops out at you from
> that do feel free to speak up :)

Can you do a PCA(3) and plot projection of axis 0 vs axis 1, then axis
0 vs axis 1 and axis 1 vs axis 2?

It seems that class "r+" is almost linearly separable using the first
2 components while the 3 others are not at all.

-- 
Olivier
http://twitter.com/ogrisel - http://github.com/ogrisel

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