A data set that occurs frequently consists of the values or the percentage breakdown of several categories for two time periods. A common way of plotting these data is to use a pair of pie charts.

The Beatles posing together. From left to right: musicians George Harrison, John Lennon, Paul McCartney and Ringo Starr, circa 1965. The Beatles return to multiple charts this week with 1, their ...

Multiple chart views are always helpful for me when I am analyzing a single pair and even a single time frame. Each chart view can have an individual tool that will help me identify support and ...

The set leads Top Rock & Alternative Albums, Americana/Folk Albums, Top Album Sales, Vinyl Albums and more. By Kevin Rutherford Bon Iver’s SABLE, fABLE premieres atop a host of Billboard album charts ...