The Bean Machine and the Central Limit Theorem
(email@example.com / GitHub
/ Twitter) A master candidate majoring in Bioinformatics at Beijing Institute of Genomics.
The bean machine, also known as the quincunx or Galton box, is a device invented by Sir Francis
Galton to demonstrate the Central Limit
Theorem, in particular that the Normal
distribution is approximated from the Binomial distribution, or properly speaking, de
quincunx() in the animation package shows you how
balls bounce left and right as they hit the pins. You can see the height of ball columns in the
bins approximates a bell curve.
ani.options(interval = 0.03, nmax = 213)