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Re: PCA
Posted:
Feb 16, 2013 12:23 AM


On 2/15/13 9:15 PM, Richard Owlett wrote: > glen herrmannsfeldt wrote: >> In comp.dsp RichD <r_delaney2001@yahoo.com> wrote: >>> I've been trying to grok principal component analysis >>> recently, but it isn't clicking. What's the motivation >>> and purpose of PCA? >> >>> I've studied linear algebra, and familiar with singular value >>> decomposition, is it somehow related to that? >> >> The wikipedia page looks pretty good, and does explain that it >> is connected to SVD. It also has some nice pictures. >> >>  glen >> > > If you are referring to > http://en.wikipedia.org/wiki/Principal_component_analysis, > > YUKK! > > Back in midst of last century that would be taken as absolute proof that > engineers could not write. > Are they now being challenged ?????
yeah, i couldn't decode the wikipedia article either.
but i typed in "principal component analysis tutorial" into Google and got some pretty good hits. the one by this Lindsey Smith guy looks pretty good.

r bj rbj@audioimagination.com
"Imagination is more important than knowledge."



