PyFacts/tests/test_stats.py

119 lines
4.3 KiB
Python

import pyfacts as pft
def test_conf(conf_fun):
conf_add = conf_fun
assert conf_add(2, 4) == 6
class TestSharpe:
def test_sharpe_daily_freq(self, create_test_data):
data = create_test_data(num=1305, frequency=pft.AllFrequencies.D, skip_weekends=True)
ts = pft.TimeSeries(data, "D")
sharpe_ratio = pft.sharpe_ratio(
ts,
risk_free_rate=0.06,
from_date="2017-02-04",
to_date="2021-12-31",
return_period_unit="months",
return_period_value=1,
)
assert round(sharpe_ratio, 4) == 1.0502
sharpe_ratio = pft.sharpe_ratio(
ts,
risk_free_rate=0.06,
from_date="2017-01-09",
to_date="2021-12-31",
return_period_unit="days",
return_period_value=7,
)
assert round(sharpe_ratio, 4) == 1.0701
sharpe_ratio = pft.sharpe_ratio(
ts,
risk_free_rate=0.06,
from_date="2018-01-02",
to_date="2021-12-31",
return_period_unit="years",
return_period_value=1,
)
assert round(sharpe_ratio, 4) == 1.4374
sharpe_ratio = pft.sharpe_ratio(
ts,
risk_free_rate=0.06,
from_date="2017-07-03",
to_date="2021-12-31",
return_period_unit="months",
return_period_value=6,
)
assert round(sharpe_ratio, 4) == 0.8401
def test_sharpe_weekly_freq(self, create_test_data):
data = create_test_data(num=261, frequency=pft.AllFrequencies.W, mu=0.6, sigma=0.7)
ts = pft.TimeSeries(data, "W")
sharpe_ratio = pft.sharpe_ratio(
ts,
risk_free_rate=0.052,
from_date="2017-01-08",
to_date="2021-12-31",
return_period_unit="days",
return_period_value=7,
)
assert round(sharpe_ratio, 4) == 0.4533
sharpe_ratio = pft.sharpe_ratio(
ts,
risk_free_rate=0.052,
from_date="2017-02-05",
to_date="2021-12-31",
return_period_unit="months",
return_period_value=1,
)
assert round(sharpe_ratio, 4) == 0.4898
sharpe_ratio = pft.sharpe_ratio(
ts,
risk_free_rate=0.052,
from_date="2018-01-01",
to_date="2021-12-31",
return_period_unit="months",
return_period_value=12,
)
assert round(sharpe_ratio, 4) == 0.3199
class TestBeta:
def test_beta_daily_freq(self, create_test_data):
market_data = create_test_data(num=3600, frequency=pft.AllFrequencies.D)
stock_data = create_test_data(num=3600, frequency=pft.AllFrequencies.D, mu=0.12, sigma=0.08)
sts = pft.TimeSeries(stock_data, "D")
mts = pft.TimeSeries(market_data, "D")
beta = pft.beta(sts, mts, frequency="D", return_period_unit="days", return_period_value=1)
assert round(beta, 4) == 1.6001
def test_beta_daily_freq_daily_returns(self, create_test_data):
market_data = create_test_data(num=3600, frequency=pft.AllFrequencies.D)
stock_data = create_test_data(num=3600, frequency=pft.AllFrequencies.D, mu=0.12, sigma=0.08)
sts = pft.TimeSeries(stock_data, "D")
mts = pft.TimeSeries(market_data, "D")
beta = pft.beta(sts, mts)
assert round(beta, 4) == 1.6292
def test_beta_monthly_freq(self, create_test_data):
market_data = create_test_data(num=3600, frequency=pft.AllFrequencies.D)
stock_data = create_test_data(num=3600, frequency=pft.AllFrequencies.D, mu=0.12, sigma=0.08)
sts = pft.TimeSeries(stock_data, "D")
mts = pft.TimeSeries(market_data, "D")
beta = pft.beta(sts, mts, frequency="M")
assert round(beta, 4) == 1.629
def test_beta_monthly_freq_monthly_returns(self, create_test_data):
market_data = create_test_data(num=3600, frequency=pft.AllFrequencies.D)
stock_data = create_test_data(num=3600, frequency=pft.AllFrequencies.D, mu=0.12, sigma=0.08)
sts = pft.TimeSeries(stock_data, "D")
mts = pft.TimeSeries(market_data, "D")
beta = pft.beta(sts, mts, frequency="M", return_period_unit="months", return_period_value=1)
assert round(beta, 4) == 1.6023