Gauges for Data Visualization, The NY Times Election Needle, and Circular Bar Charts

Gauges (or dials) are used to show numerical values, but they're not very well regarded in visualization. I believe that they can work well when used the right way, though. They're also similar to circular bar charts, which also work best when used in a part-to-whole setup, like in the case of the exercise rings on the Apple Watch. Finally, I talk about the infamous New York Times election gauge, also known as "The Needle," and why I think people reacted to it so poorly.