You won’t believe how easy it is to create animated bar charts in the R programming language to show rankings over time. Racing bar charts can be a useful way to visualize comparative data over time.

Here’s a revised animated “bar chart race” visualization above (and revised commentary below to correct for some data issues in the original chart) showing the format share of recorded music sales in ...

The animated “bar chart race” visualization above is an updated version of several previous versions featured on CD over the last several years and shows the growth over nearly the last 50 years in (a ...