This R Markdown file duplicates the MTA 2014 Charles Dow Award Winner's Beta Rotation Strategy (BRS) by Pension Partners (Bilello C.V. & Gayed M.A.). URL: www.ssrn.com/abstract=2417974.
Source: Social Media Mining with R by Danneman and Heimann
Recently, I had read an article on R-bloggers, titled Classifying Breast Cancer as Benign or Malignent using RTextTools by Timothy P. Jurka, who is the author of both that article and the RTextTools package. Having reproduced the results using the author's R code successfully, I was motivated to explore the usefulness of this package. http://www.r-bloggers.com/classifying-emails-as-spam-or-ham-using-rtexttools/