Does This Spark an Idea? Principal Component Analysis (PCA) of Yesterday and Today

(Last Updated On: April 30, 2012)
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Does This Spark an Idea? Principal Component Analysis (PCA) of Yesterday and Today

Principal Component Analysis of Yesterday and Today



we’ve just covered PCA in my Data Mining class, and so I’d be interested in reading more of your article. Thanks!


The article is actually a chapter in my new book .
However, if you rather not buy, I will be glad to chat with you.



Interesting. I am definitely interested in highly correlated eigengenes as a way to find expression networks.



PCA has long been a key part of my toolbox for dealing with high-dimensional data. At the start, it’s a good way to check whether samples cluster by treatment in a PCA biplot. Then I look at which variables have the highest loading on each principal component, which often gives an initial idea what the main biological trends in the response of the samples might be. At later stages I may filter variables by ANOVA then do PCA just using a subset of variables.


NOTE I now post my TRADING ALERTS into my personal FACEBOOK ACCOUNT and TWITTER. Don't worry as I don't post stupid cat videos or what I eat!
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About caustic

Hi i there My name is Bryan Downing. I am part of a company called QuantLabs.Net This is specifically a company with a high profile blog about technology, trading, financial, investment, quant, etc. It posts things on how to do job interviews with large companies like Morgan Stanley, Bloomberg, Citibank, and IBM. It also posts different unique tips and tricks on Java, C++, or C programming. It posts about different techniques in learning about Matlab and building models or strategies. There is a lot here if you are into venturing into the financial world like quant or technical analysis. It also discusses the future generation of trading and programming Specialties: C++, Java, C#, Matlab, quant, models, strategies, technical analysis, linux, windows P.S. I have been known to be the worst typist. Do not be offended by it as I like to bang stuff out and put priorty of what I do over typing. Maybe one day I can get a full time copy editor to help out. Do note I prefer videos as they are much easier to produce so check out my many video at