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28 lines
1.0 KiB
Plaintext
28 lines
1.0 KiB
Plaintext
10 years ago
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### demo
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>>> m = Fig[17,1]
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>>> pi = best_policy(m, value_iteration(m, .01))
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>>> pi
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{(3, 2): None, (3, 1): None, (3, 0): (-1, 0), (2, 1): (0, 1), (0, 2): (1, 0), (1, 0): (1, 0), (0, 0): (0, 1), (1, 2): (1, 0), (2, 0): (0, 1), (0, 1): (0, 1), (2, 2): (1, 0)}
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>>> m.to_arrows(pi)
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[['>', '>', '>', '.'], ['^', None, '^', '.'], ['^', '>', '^', '<']]
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>>> print_table(m.to_arrows(pi))
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> > > .
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^ None ^ .
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^ > ^ <
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>>> value_iteration(m, .01)
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{(3, 2): 1.0, (3, 1): -1.0, (3, 0): 0.12958868267972745, (0, 1): 0.39810203830605462, (0, 2): 0.50928545646220924, (1, 0): 0.25348746162470537, (0, 0): 0.29543540628363629, (1, 2): 0.64958064617168676, (2, 0): 0.34461306281476806, (2, 1): 0.48643676237737926, (2, 2): 0.79536093684710951}
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>>> policy_iteration(m)
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{(3, 2): None, (3, 1): None, (3, 0): (0, -1), (2, 1): (-1, 0), (0, 2): (1, 0), (1, 0): (1, 0), (0, 0): (1, 0), (1, 2): (1, 0), (2, 0): (1, 0), (0, 1): (1, 0), (2, 2): (1, 0)}
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>>> print_table(m.to_arrows(policy_iteration(m)))
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> > > .
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> None < .
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> > > v
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