def __init__(self,
horse_model=None,
mu=DEFAULT_MU,
sigma=DEFAULT_SIGMA,
beta=DEFAULT_BETA,
tau=DEFAULT_TAU,
draw_probability=DEFAULT_DRAW,
risk_aversion=0.1,
min_races=3,
max_exposure=50):
if horse_model is None:
logging.debug(
'Balius created from scratch: mu=%.2f sigma=%.2f beta=%.2f tau=%.2f draw_prob=%.2f '
'risk_aversion=%.2f min_races=%d max_exposure=%.2f' %
(mu, sigma, beta, tau, draw_probability, risk_aversion,
min_races, max_exposure))
self.hm = HorseModel(mu=mu,
sigma=sigma,
beta=beta,
tau=tau,
draw_probability=draw_probability)
else:
logging.debug(
'Balius created from horse model: ts=%s risk_aversion=%.2f min_races=%d max_exposure=%.2f'
%
(str(horse_model._ts), risk_aversion, min_races, max_exposure))
self.hm = horse_model
self.risk_aversion = risk_aversion
self.min_races = min_races
self.max_expsoure = max_exposure
