Table of Contents

Bean Machine

The bean machine, also known as the quincunx or Galton box, is a device invented by Sir Francis Galton to demonstrate the law of error and the normal distribution.

Animation

Bean Machine (quincunx, Galton box)
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The bean machine, also known as the quincunx or Galton box, is a device invented by Sir Francis Galton to demonstrate the law of error and the normal distribution.

R Code

library(animation)
ani.options(ani.height = 500, ani.width = 600, outdir = getwd(), 
    interval = 0.03, nmax = 213, title = "Demonstration of the Galton Box", 
    description = "Balls falling through pins will show you the Normal
    distribution.")
ani.start()
quincunx()
ani.stop()

Video

http://www.vimeo.com/2013914