> How to do PCA on this data? if it is in array how to do that? and also how
> to use princomp() in PCA?
Principal component analysis,
http://en.wikipedia.org/wiki/Principal_component_analysis
may not be "built in". Do you know for sure that it is? According to
this blog entry, you can do it in numpy by coding the algorithm:
http://glowingpython.blogspot.com/2011/07/principal-component-analysis-with-numpy.html
If you use Google and search for the term "Principal component
analysis Python", you should see several implementations of modules
that provide that algorithm.
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