sparkly-stats

With Sparkly Stats you can create statistics and sparks from daily data.

For all the details, please do see the README

Open it easily with:
  (find-file-read-only "README.org")   <--- C-x C-e here¹

or from any buffer:
  M-x sparkly-stats-see-readme

or read it online:
  <https://flandrew.srht.site/listful/sw-emacs-sparkly-stats.html>

¹ or the key that ‘eval-last-sexp’ is bound to, if not C-x C-e.