In the middle of the desert you can say anything you want

15 May 2023

Pie Charts Considered Harmful

Note that seaborn doesn’t create pie charts, as seaborn’s author considers those to be unfit for statistical visualization. See e.g. Why you shouldn’t use pie charts – Johan 1

Why you shouldn’t use pie charts:

Pies and doughnuts fail because:

  • Quantity is represented by slices; humans aren’t particularly good at estimating quantity from angles, which is the skill needed.
  • Matching the labels and the slices can be hard work.
  • Small percentages (which might be important) are tricky to show.


The world is interesting.

Nel mezzo del deserto posso dire tutto quello che voglio.