def test_Decay(self):
initial_rating = 800
player1 = EloCompetitor(initial_rating=initial_rating)
# if player1 beats someone with a high rating, their rating should go up.
for _ in range(10):
player2 = EloCompetitor(initial_rating=100)
player2.beat(player1)
self.assertLess(player1.rating, initial_rating)
initial_rating = player1.rating
def test_Improvement(self):
initial_rating = 100
player1 = EloCompetitor(initial_rating=initial_rating)
# if player1 beats someone with a high rating, their rating should go up.
for _ in range(10):
player2 = EloCompetitor(initial_rating=800)
player1.beat(player2)
self.assertGreater(player1.rating, initial_rating)
initial_rating = player1.rating
from elote import EloCompetitor
good = EloCompetitor()
better = EloCompetitor()
best = EloCompetitor()
print('Starting ratings:')
print('%7.2f, %7.2f, %7.2f' % (
good.rating,
better.rating,
best.rating,
))
print('\nAfter matches')
for _ in range(10):
better.beat(good)
best.beat(better)
print('%7.2f, %7.2f, %7.2f' % (
good.rating,
better.rating,
best.rating,
))
from elote import EloCompetitor
good = EloCompetitor(initial_rating=400)
better = EloCompetitor(initial_rating=500)
print('probability of better beating good: %5.2f%%' % (better.expected_score(good) * 100, ))
print('probability of good beating better: %5.2f%%' % (good.expected_score(better) * 100, ))
good.beat(better)
print('probability of better beating good: %5.2f%%' % (better.expected_score(good) * 100, ))
print('probability of good beating better: %5.2f%%' % (good.expected_score(better) * 100, ))
from elote import EloCompetitor
good = EloCompetitor(initial_rating=500)
better = EloCompetitor(initial_rating=450)
best = EloCompetitor(initial_rating=400)
also_best = EloCompetitor(initial_rating=400)
print('Starting ratings:')
print('%7.2f, %7.2f, %7.2f, %7.2f' % (
good.rating,
better.rating,
best.rating,
also_best.rating,
))
print('\nAfter matches')
for _ in range(20):
better.beat(good)
better.lost_to(best)
best.tied(also_best)
print('%7.2f, %7.2f, %7.2f, %7.2f' % (
good.rating,
better.rating,
best.rating,
also_best.rating,
))