"""This file contains code for use with "Think Bayes",
by Allen B. Downey, available from greenteapress.com
Copyright 2012 Allen B. Downey
License: GNU GPLv3 http://www.gnu.org/licenses/gpl.html
"""
from thinkbayes import Suite
class Monty(Suite):
def Likelihood(self, data, hypo):
"""Computes the likelihood of the data under the hypothesis.
hypo: string name of the door where the prize is
data: string name of the door Monty opened
"""
if hypo == data:
return 0
elif hypo == 'A':
return 0.5
else:
return 1
def main():
suite = Monty('ABC')
suite.Update('B')
suite.Print()
if __name__ == '__main__':
main()
