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Old 03-13-2013, 11:18 AM   #1
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Location: MO

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Default PCA interpretation

Many papers include a PCA plot of some sort to look at the patterns among variables. I have also done some PCA on a 10000x10 matrix of data. But I'm always curious how to correctly interpret the data. I would like to hearyour preference on the tool to use (prcomp, svd etc) and what to plot, and how to interpret it. I'm confused in terms of whether to use PCA and when not to use it as well. Thanks!
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