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MathGroup Archive 2004

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Re: about principal components analysis (PCA)

  • To: mathgroup at smc.vnet.net
  • Subject: [mg49714] Re: about principal components analysis (PCA)
  • From: sean_incali at yahoo.com (sean kim)
  • Date: Thu, 29 Jul 2004 07:43:35 -0400 (EDT)
  • References: <200407240747.DAA05846@smc.vnet.net> <ce5d6t$b48$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

just realized PCA is a real math method, not one devised by ppl who do DNA array...

check out the website 

http://www.ucl.ac.uk/oncology/MicroCore/HTML_resource/PCA_1.htm

http://planetmath.org/encyclopedia/PrincipleComponentsAnalysis.html

hth

sean



jz7 at duke.edu wrote in message news:<ce5d6t$b48$1 at smc.vnet.net>...
> Dear all,
> 
> Would any one please recommend some website or other material which talks
> about PCA? Most basicly, why it's only a linear method? What exactly is
> this method about? What's the limitation and advantage about it? etc.
> 
> Thanks a lot!


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