This article is a guest article by someone from the analytics community I really look up to. Dan Wilkerson is an analytics developer at Bounteous, a company I hold in high esteem. Dan is one of the smartest technical analytics experts out there, and a large bulk of the awesome scripts and hacks that Bounteous produces (almost on a daily basis) have been orchestrated by him. So I’m very pleased to give the floor to Dan, so that he can tell you all about using the pesky document.