Thursday, March 27, 2014

Visualizing principal components with R and Sochi Olympic Athletes

Principal Components Analysis (PCA) is used as a dimensionality reduction method. Here we simply explain PCA step-by-step using data about Sochi Olympic Curlers.

Why "My Documents" Acts Weird in cmd.exe

On modern Windows, My Documents is not a normal folder . It is a legacy junction kept for old software. A junction is an NTFS reparse point ...