Difference Chart
Fill the space between lines to highlight the greater-than and less-than differences over time.
How I Made That: Searchable Time Series Chart
When there are too many options or categories, it can be helpful to make the data searchable.
How to Make Bivariate Area Charts in R
Quickly compare two time series variables with this line-area chart hybrid that originated in the 1700s. Also known as: difference chart.
