def ReadHockeyData(filename='hockey_data.csv'):
"""Read game scores from the data file.
filename: string
"""
game_list = columns.read_csv(filename, Game)
# map from gameID to list of two games
games = {}
for game in game_list:
if game.season != 2011:
continue
key = game.game
games.setdefault(key, []).append(game)
# map from (team1, team2) to (score1, score2)
pairs = {}
for key, pair in games.iteritems():
t1, t2 = pair
key = t1.team, t2.team
entry = t1.total, t2.total
pairs.setdefault(key, []).append(entry)
ProcessScoresTeamwise(pairs)
ProcessScoresPairwise(pairs)
def ReadHockeyData(filename='hockey_data.csv'):
"""Read game scores from the data file.
filename: string
"""
game_list = columns.read_csv(filename, Game)
# map from gameID to list of two games
games = {}
for game in game_list:
if game.season != 2011:
continue
key = game.game
games.setdefault(key, []).append(game)
# map from (team1, team2) to (score1, score2)
pairs = {}
for key, pair in games.items():
t1, t2 = pair
key = t1.team, t2.team
entry = t1.total, t2.total
pairs.setdefault(key, []).append(entry)
ProcessScoresTeamwise(pairs)
ProcessScoresPairwise(pairs)
def ReadHockeyData(filename='hockey_data.csv'):
"""Read game scores from the data file.
filename: string
"""
game_list = columns.read_csv(filename, Game)
games = {}
# map from gameID to list of two games
for game in game_list:
if game.season != 2011:
continue
key = game.game
games.setdefault(key, []).append(game)
pairs = {}
# map from (team1, team2) to (score1, score2)
for key, pair in games.iteritems():
t1, t2 = pair
key = t1.team, t2.team
entry = t1.total, t2.total
pairs.setdefault(key, []).append(entry)
goals_scored = {}
# map from (team1, team2) to list of goals scored
for key, entries in pairs.iteritems():
t1, t2 = key
for entry in entries:
g1, g2 = entry
goals_scored.setdefault((t1, t2), []).append(g1)
goals_scored.setdefault((t2, t1), []).append(g2)
# make a list of average goals scored for each pair of teams
lams = []
for key, goals in goals_scored.iteritems():
if len(goals) < 3:
continue
lam = thinkstats.Mean(goals)
lams.append(lam)
# make the distribution of average goals scored
cdf = thinkbayes.MakeCdfFromList(lams)
myplot.Cdf(cdf)
myplot.Show()
mu, var = thinkstats.MeanVar(lams)
print 'mu, sig', mu, math.sqrt(var)
print 'BOS v VAN', pairs['BOS', 'VAN']
