Welcome to the PrincipalComponents Blog

I started this blog August 13, 2013 to capture lists, methods, and principles for reference in Twitter. 

We use the principal components to reveal some underlying structure in a data or correlation matrix. That is a nice metaphor for what I have in mind - extracting a few essential features from the usual flood. I am sure that I don't have the time or energy for long posts.

This blog is not intended to convey any medical advice. The content represents my private opinion only and does not represent my employer or any professional associates or organizations.