Heatmap

Things have a way of repeating themselves, and it can be useful to highlight these patterns in data.

Add interaction so that you can show different segments of the data and allow comparisons.

You saw how to make basic heat maps a while back, but you might want more flexibility for a specific data set. Once you understand the components of a heat map, the rest is straightforward.

The familiar but underused layout is a good way to look at patterns over time.

A heatmap is a literal way of visualizing a table of numbers, where you substitute the numbers with colored cells. This is a quick way to make one in R.