"Big data isn't useful for investment purposes." So said my friend Walt during one of our recent arguments discussions. By way of background, Walt is not an über-successful 70-year-old investor who earned his chops well before the advents of Twitter, Facebook and their ilk. Rather, he's a man of a similar age to
With the others, I filed into the school gymnasium, my super zoom camera lens at the ready and a nervous smile on my face. Across the room, I caught a glimpse of my unsmiling daughter, and my apprehension grew about how this awards day program would play out for her.
When I call R from within the SAS/IML language, I often pass parameters from SAS into R. This feature enables me to write general-purpose, reusable, modules that can analyze data from many different data sets. I've previously blogged about how to pass values to SAS procedures from PROC IML by
