An R script to download British parlimentary elections data for elections between 1955 and 2019, and plot the distribution of the vote share for the Conservative and Labour parties as a ridgeline plot. You can read more about it in a blog post, The rise and fall in support for British political parties.
The data is from Election Calculus. The chart is created using Hadley Wickham’s ggplot2
package and Claus Wilke’s ggridges
extension.