Several weeks ago, I led a SAS Talks webinar on SAS/ETS emphasizing the many recent changes to the software. SAS/ETS, for those unfamiliar with the product, is SAS’s suite of econometrics, time series and forecasting tools and algorithms. While we covered a substantial amount of material in the talk, there
Light years from Earth, within the constellation Virgo, two galaxies crashed into one another. Not something you could’ve seen peering into the night sky with the naked eye. We know it happened because astronomers pieced together images from several powerful telescopes to create what CBS News called a “cosmic magnifying
It's time for another blog post about ciphers. As I indicated in my previous blog post about substitution ciphers, the classical substitution cipher is no longer used to encrypt ultra-secret messages because the enciphered text is prone to a type of statistical attack known as frequency analysis. At the root
