def test_id(self):
expr = bz.Data(self.df, name='expr', dshape=self.dshape)
loader = BlazeLoader()
ds = from_blaze(
expr,
loader=loader,
no_deltas_rule='ignore',
)
p = Pipeline()
p.add(ds.value.latest, 'value')
dates = self.dates
with tmp_asset_finder() as finder:
result = SimplePipelineEngine(
loader,
dates,
finder,
).run_pipeline(p, dates[0], dates[-1])
expected = self.df.drop('asof_date',
axis=1).set_index(['timestamp', 'sid'], )
expected.index = pd.MultiIndex.from_product((
expected.index.levels[0],
finder.retrieve_all(expected.index.levels[1]),
))
assert_frame_equal(result, expected, check_dtype=False)
def _test_id(self, df, dshape, expected, finder, add):
expr = bz.data(df, name='expr', dshape=dshape)
loader = BlazeLoader()
ds = from_blaze(
expr,
loader=loader,
no_deltas_rule=no_deltas_rules.ignore,
missing_values=self.missing_values,
)
p = Pipeline()
for a in add:
p.add(getattr(ds, a).latest, a)
dates = self.dates
with tmp_asset_finder() as finder:
result = SimplePipelineEngine(
loader,
dates,
finder,
).run_pipeline(p, dates[0], dates[-1])
assert_frame_equal(
result,
_utc_localize_index_level_0(expected),
check_dtype=False,
)
def _run_pipeline(
self, expr, deltas, expected_views, expected_output, finder, calendar, start, end, window_length, compute_fn
):
loader = BlazeLoader()
ds = from_blaze(
expr, deltas, loader=loader, no_deltas_rule=no_deltas_rules.raise_, missing_values=self.missing_values
)
p = Pipeline()
# prevent unbound locals issue in the inner class
window_length_ = window_length
class TestFactor(CustomFactor):
inputs = (ds.value,)
window_length = window_length_
def compute(self, today, assets, out, data):
assert_array_almost_equal(data, expected_views[today])
out[:] = compute_fn(data)
p.add(TestFactor(), "value")
result = SimplePipelineEngine(loader, calendar, finder).run_pipeline(p, start, end)
assert_frame_equal(result, _utc_localize_index_level_0(expected_output), check_dtype=False)
def initialize(context):
pipe = Pipeline()
attach_pipeline(pipe, 'example')
# Note that we don't call add_factor on these Factors.
# We don't need to store intermediate values if we're not going to use them
sma_short = SimpleMovingAverage(inputs=[USEquityPricing.close], window_length=30)
sma_long = SimpleMovingAverage(inputs=[USEquityPricing.close], window_length=100)
sma_val = sma_short/sma_long
# Construct the custom factor
mkt_cap = MarketCap()
# Create and apply a filter representing the top 500 equities by MarketCap
# every day.
mkt_cap_top_500 = mkt_cap.top(500)
remove_penny_stocks = sma_short > 1.0
pipe.add(sma_val, 'sma_val')
pipe.add(mkt_cap, 'mkt_cap')
# Use mkt_cap_top_500 as a mask on rank
pipe.add(sma_val.rank(mask=mkt_cap_top_500), 'sma_rank')
# Use multiple screens to narrow the universe
pipe.set_screen(mkt_cap.top(500) & remove_penny_stocks)
def _run_pipeline(self, expr, deltas, expected_views, expected_output,
finder, calendar, start, end, window_length, compute_fn):
loader = BlazeLoader()
ds = from_blaze(
expr,
deltas,
loader=loader,
no_deltas_rule=no_deltas_rules.raise_,
)
p = Pipeline()
# prevent unbound locals issue in the inner class
window_length_ = window_length
class TestFactor(CustomFactor):
inputs = ds.value,
window_length = window_length_
def compute(self, today, assets, out, data):
assert_array_almost_equal(data, expected_views[today])
out[:] = compute_fn(data)
p.add(TestFactor(), 'value')
result = SimplePipelineEngine(
loader,
calendar,
finder,
).run_pipeline(p, start, end)
assert_frame_equal(
result,
expected_output,
check_dtype=False,
)
def test_id(self):
expr = bz.Data(self.df, name='expr', dshape=self.dshape)
loader = BlazeLoader()
ds = from_blaze(
expr,
loader=loader,
no_deltas_rule=no_deltas_rules.ignore,
)
p = Pipeline()
p.add(ds.value.latest, 'value')
dates = self.dates
with tmp_asset_finder() as finder:
result = SimplePipelineEngine(
loader,
dates,
finder,
).run_pipeline(p, dates[0], dates[-1])
expected = self.df.drop('asof_date', axis=1).set_index(
['timestamp', 'sid'],
)
expected.index = pd.MultiIndex.from_product((
expected.index.levels[0],
finder.retrieve_all(expected.index.levels[1]),
))
assert_frame_equal(result, expected, check_dtype=False)
def test_id_macro_dataset(self):
expr = bz.Data(self.macro_df, name='expr', dshape=self.macro_dshape)
loader = BlazeLoader()
ds = from_blaze(
expr,
loader=loader,
no_deltas_rule='ignore',
)
p = Pipeline()
p.add(ds.value.latest, 'value')
dates = self.dates
asset_info = asset_infos[0][0]
with tmp_asset_finder(asset_info) as finder:
result = SimplePipelineEngine(
loader,
dates,
finder,
).run_pipeline(p, dates[0], dates[-1])
nassets = len(asset_info)
expected = pd.DataFrame(
list(concatv([0] * nassets, [1] * nassets, [2] * nassets)),
index=pd.MultiIndex.from_product((
self.macro_df.timestamp,
finder.retrieve_all(asset_info.index),
)),
columns=('value', ),
)
assert_frame_equal(result, expected, check_dtype=False)
def test_id_macro_dataset(self):
expr = bz.Data(self.macro_df, name='expr', dshape=self.macro_dshape)
loader = BlazeLoader()
ds = from_blaze(
expr,
loader=loader,
no_deltas_rule=no_deltas_rules.ignore,
)
p = Pipeline()
p.add(ds.value.latest, 'value')
dates = self.dates
asset_info = asset_infos[0][0]
with tmp_asset_finder(equities=asset_info) as finder:
result = SimplePipelineEngine(
loader,
dates,
finder,
).run_pipeline(p, dates[0], dates[-1])
nassets = len(asset_info)
expected = pd.DataFrame(
list(concatv([0] * nassets, [1] * nassets, [2] * nassets)),
index=pd.MultiIndex.from_product((
self.macro_df.timestamp,
finder.retrieve_all(asset_info.index),
)),
columns=('value',),
)
assert_frame_equal(result, expected, check_dtype=False)
def test_custom_query_time_tz(self):
df = self.df.copy()
df['timestamp'] = (
pd.DatetimeIndex(df['timestamp'], tz='EST') +
timedelta(hours=8, minutes=44)).tz_convert('utc').tz_localize(None)
df.ix[3:5, 'timestamp'] = pd.Timestamp('2014-01-01 13:45')
expr = bz.Data(df, name='expr', dshape=self.dshape)
loader = BlazeLoader(data_query_time=time(8, 45), data_query_tz='EST')
ds = from_blaze(
expr,
loader=loader,
no_deltas_rule=no_deltas_rules.ignore,
)
p = Pipeline()
p.add(ds.value.latest, 'value')
dates = self.dates
with tmp_asset_finder() as finder:
result = SimplePipelineEngine(
loader,
dates,
finder,
).run_pipeline(p, dates[0], dates[-1])
expected = df.drop('asof_date', axis=1)
expected['timestamp'] = expected['timestamp'].dt.normalize().astype(
'datetime64[ns]', )
expected.ix[3:5, 'timestamp'] += timedelta(days=1)
expected.set_index(['timestamp', 'sid'], inplace=True)
expected.index = pd.MultiIndex.from_product((
expected.index.levels[0],
finder.retrieve_all(expected.index.levels[1]),
))
assert_frame_equal(result, expected, check_dtype=False)
def _test_id(self, df, dshape, expected, finder, add):
expr = bz.Data(df, name='expr', dshape=dshape)
loader = BlazeLoader()
ds = from_blaze(
expr,
loader=loader,
no_deltas_rule=no_deltas_rules.ignore,
missing_values=self.missing_values,
)
p = Pipeline()
for a in add:
p.add(getattr(ds, a).latest, a)
dates = self.dates
with tmp_asset_finder() as finder:
result = SimplePipelineEngine(
loader,
dates,
finder,
).run_pipeline(p, dates[0], dates[-1])
assert_frame_equal(
result,
_utc_localize_index_level_0(expected),
check_dtype=False,
)
def test_custom_query_time_tz(self):
df = self.df.copy()
df["timestamp"] = (
(pd.DatetimeIndex(df["timestamp"], tz="EST") + timedelta(hours=8, minutes=44))
.tz_convert("utc")
.tz_localize(None)
)
df.ix[3:5, "timestamp"] = pd.Timestamp("2014-01-01 13:45")
expr = bz.Data(df, name="expr", dshape=self.dshape)
loader = BlazeLoader(data_query_time=time(8, 45), data_query_tz="EST")
ds = from_blaze(expr, loader=loader, no_deltas_rule=no_deltas_rules.ignore, missing_values=self.missing_values)
p = Pipeline()
p.add(ds.value.latest, "value")
p.add(ds.int_value.latest, "int_value")
dates = self.dates
with tmp_asset_finder() as finder:
result = SimplePipelineEngine(loader, dates, finder).run_pipeline(p, dates[0], dates[-1])
expected = df.drop("asof_date", axis=1)
expected["timestamp"] = expected["timestamp"].dt.normalize().astype("datetime64[ns]").dt.tz_localize("utc")
expected.ix[3:5, "timestamp"] += timedelta(days=1)
expected.set_index(["timestamp", "sid"], inplace=True)
expected.index = pd.MultiIndex.from_product(
(expected.index.levels[0], finder.retrieve_all(expected.index.levels[1]))
)
assert_frame_equal(result, expected, check_dtype=False)
def initialize(context):
"""
use our factors to add our pipes and screens.
"""
pipe = Pipeline()
attach_pipeline(pipe, 'ff_example')
mkt_cap = MarketEquity()
pipe.add(mkt_cap, 'market_cap')
book_equity = BookEquity()
# book equity over market equity
bm = book_equity/mkt_cap
pipe.add(bm, 'bm')
# 营运能力
op = OP()
pipe.add(op, 'op')
# 投资因子
inv = INV()
pipe.add(inv, 'inv')
returns = Returns(window_length=2)
pipe.add(returns, 'returns')
dt = get_datetime().normalize()
start_ = dt if dt > START_DATE else START_DATE
context.result = result.loc[start_: , :]
def test_id_macro_dataset_multiple_columns(self):
"""
input (df):
asof_date timestamp other value
0 2014-01-01 2014-01-01 1 0
3 2014-01-02 2014-01-02 2 1
6 2014-01-03 2014-01-03 3 2
output (expected):
other value
2014-01-01 Equity(65 [A]) 1 0
Equity(66 [B]) 1 0
Equity(67 [C]) 1 0
2014-01-02 Equity(65 [A]) 2 1
Equity(66 [B]) 2 1
Equity(67 [C]) 2 1
2014-01-03 Equity(65 [A]) 3 2
Equity(66 [B]) 3 2
Equity(67 [C]) 3 2
"""
df = self.macro_df.copy()
df['other'] = df.value + 1
fields = OrderedDict(self.macro_dshape.measure.fields)
fields['other'] = fields['value']
expr = bz.Data(df, name='expr', dshape=var * Record(fields))
loader = BlazeLoader()
ds = from_blaze(
expr,
loader=loader,
no_deltas_rule=no_deltas_rules.ignore,
)
p = Pipeline()
p.add(ds.value.latest, 'value')
p.add(ds.other.latest, 'other')
dates = self.dates
asset_info = asset_infos[0][0]
with tmp_asset_finder(equities=asset_info) as finder:
result = SimplePipelineEngine(
loader,
dates,
finder,
).run_pipeline(p, dates[0], dates[-1])
expected = pd.DataFrame(
np.array([[0, 1],
[1, 2],
[2, 3]]).repeat(3, axis=0),
index=pd.MultiIndex.from_product((
df.timestamp,
finder.retrieve_all(asset_info.index),
)),
columns=('value', 'other'),
).sort_index(axis=1)
assert_frame_equal(
result,
expected.sort_index(axis=1),
check_dtype=False,
)
def test_mean_reversion_5day_sector_neutral_smoothed(fn):
column_name = 'Mean_Reversion_5Day_Sector_Neutral_Smoothed'
start_date_str = '2015-01-05'
end_date_str = '2015-01-07'
# Build engine
trading_calendar = get_calendar('NYSE')
bundle_data = bundles.load(project_helper.EOD_BUNDLE_NAME)
engine = project_helper.build_pipeline_engine(bundle_data,
trading_calendar)
# Build pipeline
universe_window_length = 2
universe_asset_count = 4
universe = AverageDollarVolume(
window_length=universe_window_length).top(universe_asset_count)
pipeline = Pipeline(screen=universe)
run_pipeline_args = {
'pipeline': pipeline,
'start_date': pd.Timestamp(start_date_str, tz='utc'),
'end_date': pd.Timestamp(end_date_str, tz='utc')
}
fn_inputs = {
'window_length': 3,
'universe': universe,
'sector': project_helper.Sector()
}
fn_correct_outputs = OrderedDict([
('pipline_out',
pd.DataFrame([
0.44721360, 1.34164079, -1.34164079, -0.44721360, 1.34164079,
0.44721360, -1.34164079, -0.44721360, 0.44721360, 1.34164079,
-1.34164079, -0.44721360
],
engine.run_pipeline(**run_pipeline_args).index,
[column_name]))
])
print('Running Integration Test on pipeline:')
print('> start_dat = pd.Timestamp(\'{}\', tz=\'utc\')'.format(
start_date_str))
print('> end_date = pd.Timestamp(\'{}\', tz=\'utc\')'.format(end_date_str))
print('> universe = AverageDollarVolume(window_length={}).top({})'.format(
universe_window_length, universe_asset_count))
print('> factor = {}('.format(fn.__name__))
print(' window_length={},'.format(fn_inputs['window_length']))
print(' universe=universe,')
print(' sector=project_helper.Sector())')
print('> pipeline.add(factor, \'{}\')'.format(column_name))
print('> engine.run_pipeline(pipeline, start_dat, end_date)')
print('')
pipeline.add(fn(**fn_inputs), column_name)
assert_output(engine.run_pipeline,
run_pipeline_args,
fn_correct_outputs,
check_parameter_changes=False)
def test_id_macro_dataset_multiple_columns(self):
"""
input (df):
asof_date timestamp other value
0 2014-01-01 2014-01-01 1 0
3 2014-01-02 2014-01-02 2 1
6 2014-01-03 2014-01-03 3 2
output (expected):
other value
2014-01-01 Equity(65 [A]) 1 0
Equity(66 [B]) 1 0
Equity(67 [C]) 1 0
2014-01-02 Equity(65 [A]) 2 1
Equity(66 [B]) 2 1
Equity(67 [C]) 2 1
2014-01-03 Equity(65 [A]) 3 2
Equity(66 [B]) 3 2
Equity(67 [C]) 3 2
"""
df = self.macro_df.copy()
df['other'] = df.value + 1
fields = OrderedDict(self.macro_dshape.measure.fields)
fields['other'] = fields['value']
expr = bz.Data(df, name='expr', dshape=var * Record(fields))
loader = BlazeLoader()
ds = from_blaze(
expr,
loader=loader,
no_deltas_rule=no_deltas_rules.ignore,
)
p = Pipeline()
p.add(ds.value.latest, 'value')
p.add(ds.other.latest, 'other')
dates = self.dates
asset_info = asset_infos[0][0]
with tmp_asset_finder(equities=asset_info) as finder:
result = SimplePipelineEngine(
loader,
dates,
finder,
).run_pipeline(p, dates[0], dates[-1])
expected = pd.DataFrame(
np.array([[0, 1], [1, 2], [2, 3]]).repeat(3, axis=0),
index=pd.MultiIndex.from_product((
df.timestamp,
finder.retrieve_all(asset_info.index),
)),
columns=('value', 'other'),
).sort_index(axis=1)
assert_frame_equal(
result,
expected.sort_index(axis=1),
check_dtype=False,
)
def test_factor_with_multiple_outputs(self):
dates = self.dates[5:10]
assets = self.assets
asset_ids = self.asset_ids
constants = self.constants
num_dates = len(dates)
num_assets = len(assets)
open = USEquityPricing.open
close = USEquityPricing.close
engine = SimplePipelineEngine(
lambda column: self.loader, self.dates, self.asset_finder,
)
def create_expected_results(expected_value, mask):
expected_values = where(mask, expected_value, nan)
return DataFrame(expected_values, index=dates, columns=assets)
cascading_mask = AssetIDPlusDay() < (asset_ids[-1] + dates[0].day)
expected_cascading_mask_result = make_cascading_boolean_array(
shape=(num_dates, num_assets),
)
alternating_mask = (AssetIDPlusDay() % 2).eq(0)
expected_alternating_mask_result = make_alternating_boolean_array(
shape=(num_dates, num_assets), first_value=False,
)
expected_no_mask_result = full(
shape=(num_dates, num_assets), fill_value=True, dtype=bool_dtype,
)
masks = cascading_mask, alternating_mask, NotSpecified
expected_mask_results = (
expected_cascading_mask_result,
expected_alternating_mask_result,
expected_no_mask_result,
)
for mask, expected_mask in zip(masks, expected_mask_results):
open_price, close_price = MultipleOutputs(mask=mask)
pipeline = Pipeline(
columns={'open_price': open_price, 'close_price': close_price},
)
if mask is not NotSpecified:
pipeline.add(mask, 'mask')
results = engine.run_pipeline(pipeline, dates[0], dates[-1])
for colname, case_column in (('open_price', open),
('close_price', close)):
if mask is not NotSpecified:
mask_results = results['mask'].unstack()
check_arrays(mask_results.values, expected_mask)
output_results = results[colname].unstack()
output_expected = create_expected_results(
constants[case_column], expected_mask,
)
assert_frame_equal(output_results, output_expected)
def create_high_dollar_volume_pipeline():
pipe = Pipeline()
dollar_volume = AverageDollarVolume(
window_length=63) # 63 days = 1 quarter
pipe.add(dollar_volume, 'dollar_volume')
high_dollar_volume = dollar_volume.percentile_between(
95, 100) # top 5% by dollar volume
pipe.set_screen(high_dollar_volume)
return pipe
def initialize(context):
# Create, register and name a pipeline in initialize.
pipe = Pipeline()
attach_pipeline(pipe, 'example')
# Construct a simple moving average factor and add it to the pipeline.
sma_short = SimpleMovingAverage(inputs=[USEquityPricing.close], window_length=10)
pipe.add(sma_short, 'sma_short')
# Set a screen on the pipelines to filter out securities.
pipe.set_screen(sma_short > 1.0)
def test_adding_slice_column(self):
"""
Test that slices cannot be added as a pipeline column.
"""
my_asset = self.asset_finder.retrieve_asset(self.sids[0])
open_slice = OpenPrice()[my_asset]
with self.assertRaises(UnsupportedPipelineOutput):
Pipeline(columns={'open_slice': open_slice})
pipe = Pipeline(columns={})
with self.assertRaises(UnsupportedPipelineOutput):
pipe.add(open_slice, 'open_slice')
def test_adding_slice_column(self):
"""
Test that slices cannot be added as a pipeline column.
"""
my_asset = self.asset_finder.retrieve_asset(self.sids[0])
open_slice = OpenPrice()[my_asset]
with self.assertRaises(UnsupportedPipelineOutput):
Pipeline(columns={'open_slice': open_slice})
pipe = Pipeline(columns={})
with self.assertRaises(UnsupportedPipelineOutput):
pipe.add(open_slice, 'open_slice')
def make_pipeline(asset_finder):
private_universe = private_universe_mask( hs300.tolist(),asset_finder=asset_finder)
#print private_universe_mask(['000001','000002','000005'],asset_finder=asset_finder)
######################################################################################################
returns = Returns(inputs=[USEquityPricing.close], window_length=5) # 预测一周数据
######################################################################################################
ep = 1/Fundamental(mask = private_universe,asset_finder=asset_finder).pe
bp = 1/Fundamental(mask = private_universe,asset_finder=asset_finder).pb
bvps = Fundamental(mask = private_universe,asset_finder=asset_finder).bvps
market = Fundamental(mask = private_universe,asset_finder=asset_finder).outstanding
rev20 = Returns(inputs=[USEquityPricing.close], window_length=20,mask = private_universe)
vol20 = AverageDollarVolume(window_length=20,mask = private_universe)
illiq = ILLIQ(window_length=22,mask = private_universe)
rsi = RSI(window_length=22,mask = private_universe)
mom = Momentum(window_length=252,mask = private_universe)
sector = get_sector(asset_finder=asset_finder,mask=private_universe)
ONEHOTCLASS,sector_indict_keys = get_sector_by_onehot(asset_finder=asset_finder,mask=private_universe)
pipe_columns = {
'ep':ep.zscore(groupby=sector).downsample('month_start'),
'bp':bp.zscore(groupby=sector).downsample('month_start'),
'bvps':bvps.zscore(groupby=sector).downsample('month_start'),
'market_cap': market.zscore(groupby=sector).downsample('month_start'),
'vol20':vol20.zscore(groupby=sector),
'rev20':rev20.zscore(groupby=sector),
'ILLIQ':illiq.zscore(groupby=sector,mask=illiq.percentile_between(1, 99)),
'mom' :mom.zscore(groupby=sector,mask=mom.percentile_between(1, 99)),
'rsi' :rsi.zscore(groupby=sector,mask=rsi.percentile_between(1, 99)),
#'sector':sector,
#'returns':returns.quantiles(100),
'returns': returns.zscore(),
}
# pipe_screen = (low_returns | high_returns)
pipe = Pipeline(columns=pipe_columns,
screen=private_universe,
)
i = 0
for c in ONEHOTCLASS:
pipe.add(c,sector_indict_keys[i])
i +=1
return pipe
def test_factor(expression,
control,
start_date='2017-01-04',
end_date='2017-01-04',
show_df=False):
p = Pipeline(screen=universe)
p.add(expression.make_pipeline_factor().pipeline_factor(mask=universe),
'expression_alpha')
p.add(control, 'pipeline_factor')
df = run_pipeline(p, start_date, end_date)
print(
np.allclose(df['expression_alpha'].values,
df['pipeline_factor'].values))
if show_df:
print df
def initialize(context):
pipe = Pipeline()
attach_pipeline(pipe, 'my_pipeline')
pb_ratios = PriceBookRatio()
pipe.add(pb_ratios, 'pb_ratio')
# If Zipline has trouble pulling the default benchmark, try setting the
# benchmark to something already in your bundle
# set_benchmark(symbol("change this to a symbol in your data"))
# Rebalance monthly
schedule_function(rebalance, date_rules.month_start())
context.set_commission(commission.PerShare(cost=.0075, min_trade_cost=1.0))
def initialize(context):
pipeline = Pipeline()
context.vwaps = []
for length in vwaps:
name = vwap_key(length)
factor = VWAP(window_length=length)
context.vwaps.append(factor)
pipeline.add(factor, name=name)
filter_ = (USEquityPricing.close.latest > 300)
pipeline.add(filter_, 'filter')
if set_screen:
pipeline.set_screen(filter_)
attach_pipeline(pipeline, 'test')
def initialize(context):
pipeline = Pipeline()
context.vwaps = []
for length in vwaps:
name = vwap_key(length)
factor = VWAP(window_length=length)
context.vwaps.append(factor)
pipeline.add(factor, name=name)
filter_ = USEquityPricing.close.latest > 300
pipeline.add(filter_, "filter")
if set_screen:
pipeline.set_screen(filter_)
attach_pipeline(pipeline, "test")
def make_strategy_pipeline(context):
pipe = Pipeline()
# get the strategy parameters
lookback = context.params['lookback']*21
v = context.params['min_volume']
# Set the volume filter
volume_filter = average_volume_filter(lookback, v)
# compute past returns
momentum = period_returns(lookback,volume_filter)
pipe.add(momentum,'momentum')
return pipe
def test_mean_reversion_5day_sector_neutral_smoothed(fn):
column_name = 'Mean_Reversion_5Day_Sector_Neutral_Smoothed'
start_date_str = '2015-01-05'
end_date_str = '2015-01-07'
# Build engine
trading_calendar = get_calendar('NYSE')
bundle_data = bundles.load(project_helper.EOD_BUNDLE_NAME)
engine = project_helper.build_pipeline_engine(bundle_data, trading_calendar)
# Build pipeline
universe_window_length = 2
universe_asset_count = 4
universe = AverageDollarVolume(window_length=universe_window_length).top(universe_asset_count)
pipeline = Pipeline(screen=universe)
run_pipeline_args = {
'pipeline': pipeline,
'start_date': pd.Timestamp(start_date_str, tz='utc'),
'end_date': pd.Timestamp(end_date_str, tz='utc')}
fn_inputs = {
'window_length': 3,
'universe': universe,
'sector': project_helper.Sector()}
fn_correct_outputs = OrderedDict([
(
'pipline_out', pd.DataFrame(
[0.44721360, 1.34164079, -1.34164079, -0.44721360,
1.34164079, 0.44721360, -1.34164079, -0.44721360,
0.44721360, 1.34164079, -1.34164079, -0.44721360],
engine.run_pipeline(**run_pipeline_args).index,
[column_name]))])
print('Running Integration Test on pipeline:')
print('> start_dat = pd.Timestamp(\'{}\', tz=\'utc\')'.format(start_date_str))
print('> end_date = pd.Timestamp(\'{}\', tz=\'utc\')'.format(end_date_str))
print('> universe = AverageDollarVolume(window_length={}).top({})'.format(
universe_window_length, universe_asset_count))
print('> factor = {}('.format(fn.__name__))
print(' window_length={},'.format(fn_inputs['window_length']))
print(' universe=universe,')
print(' sector=project_helper.Sector())')
print('> pipeline.add(factor, \'{}\')'.format(column_name))
print('> engine.run_pipeline(pipeline, start_dat, end_date)')
print('')
pipeline.add(fn(**fn_inputs), column_name)
assert_output(engine.run_pipeline, run_pipeline_args, fn_correct_outputs, check_parameter_changes=False)
def make_strategy_pipeline(context):
pipe = Pipeline()
# get the strategy parameters
lookback = context.params['lookback']*21
v = context.params['min_volume']
# Set the volume filter
volume_filter = average_volume_filter(lookback, v)
# compute past returns
rsi_factor = technical_factor(lookback, rsi, 14)
pipe.add(rsi_factor,'rsi')
pipe.set_screen(volume_filter)
return pipe
def initialize(context):
# Create, register and name a pipeline in initialize.
pipe = Pipeline()
context.attach_pipeline(pipe, 'AAPL')
# Construct a simple moving average factor and add it to the pipeline.
USEquityPricing需要本地自定义
if True:
sma_short = SimpleMovingAverage(inputs=[USEquityPricing.close],
window_length=10)
else: #mid added
data = Column(float64)
dataset = DataSet()
close = data.bind(dataset, 'aapl')
sma_short = SimpleMovingAverage(inputs=[close], window_length=10)
pipe.add(sma_short, 'sma_short')
def initialize(context):
# Create, register and name a pipeline in initialize.
pipe = Pipeline()
context.attach_pipeline(pipe, 'AAPL')
# Construct a simple moving average factor and add it to the pipeline.
USEquityPricing需要本地自定义
if True:
sma_short = SimpleMovingAverage(inputs=[USEquityPricing.close], window_length=10)
else:#mid added
data = Column(float64)
dataset = DataSet()
close = data.bind(dataset, 'aapl')
sma_short = SimpleMovingAverage(inputs=[close], window_length=10)
pipe.add(sma_short, 'sma_short')
def make_pipeline():
filter1 = CNEquityPricing.volume.latest > 4000
# filter2 = CNEquityPricing.high.latest < CNEquityPricing.up_limit.latest/1000
# filter3 = CNEquityPricing.high.latest > CNEquityPricing.down_limit.latest/1000
market_cap = CNEquityPricing.close.latest * CNFinancialData.total_share_0QE.latest
universe = filter1 & market_cap.notnull()
maket_cap_1 = market_cap.deciles(mask=universe).eq(0)
market_cap_top5 = market_cap.bottom(5, mask=maket_cap_1)
# market_cap_1_top = market_cap.top(5, mask=maket_cap_1)
pipe = Pipeline()
pipe.add(market_cap, 'market_cap')
pipe.set_screen(market_cap_top5)
return pipe
def make_pipeline(context):
advFilter = curVsAvgVolFilter(context.params.get('lookback'))
# midToLargeFilter = isMidToLargeCap(context.params.get('lookback'))
smaSlow = SimpleMovingAverage(
inputs=[USEquityPricing.close],
window_length=context.params.get('smaSlowLookback'))
smaFast = SimpleMovingAverage(
inputs=[USEquityPricing.close],
window_length=context.params.get('smaFastLookback'))
top50 = AverageDollarVolume(window_length=20).top(50)
pipe = Pipeline(screen=top50)
pipe.add(advFilter, 'advFilter')
pipe.add(smaSlow, 'smaSlow')
pipe.add(smaFast, 'smaFast')
# pipe.add(midToLargeFilter, 'midToLargeFilter')
return pipe
def make_strategy_pipeline(context):
pipe = Pipeline()
# get the strategy parameters
lookback = context.params['lookback'] * 21
v = context.params['min_volume']
# Set the volume filter
volume_filter = average_volume_filter(lookback, v)
# compute past returns
vol_factor = technical_factor(lookback, volatility, 1)
skew_factor = technical_factor(lookback, skewness, None)
pipe.add(vol_factor, 'vol')
pipe.add(skew_factor, 'skew')
pipe.set_screen(volume_filter)
return pipe
def make_strategy_pipeline(context):
pipe = Pipeline()
# Set the volume filter, 126 days is roughly 6 month daily data
volume_filter = average_volume_filter(126, 1E7)
# compute past returns
rsi_factor = technical_factor(126, rsi, 14)
ema20_factor = technical_factor(126, ema, 20)
ema50_factor = technical_factor(126, ema, 50)
# add to pipelines
pipe.add(rsi_factor,'rsi')
pipe.add(ema20_factor,'ema20')
pipe.add(ema50_factor,'ema50')
pipe.set_screen(volume_filter)
return pipe
def test_add(self):
p = Pipeline()
f = SomeFactor()
p.add(f, "f")
self.assertEqual(p.columns, {"f": f})
p.add(f > 5, "g")
self.assertEqual(p.columns, {"f": f, "g": f > 5})
with self.assertRaises(TypeError):
p.add(f, 1)
with self.assertRaises(TypeError):
p.add(USEquityPricing.open, "open")
def test_add(self):
p = Pipeline()
f = SomeFactor()
p.add(f, 'f')
self.assertEqual(p.columns, {'f': f})
p.add(f > 5, 'g')
self.assertEqual(p.columns, {'f': f, 'g': f > 5})
with self.assertRaises(TypeError):
p.add(f, 1)
with self.assertRaises(TypeError):
p.add(USEquityPricing.open, 'open')
def test_add(self):
p = Pipeline()
f = SomeFactor()
p.add(f, "f")
assert p.columns == {"f": f}
p.add(f > 5, "g")
assert p.columns == {"f": f, "g": f > 5}
with pytest.raises(TypeError):
p.add(f, 1)
with pytest.raises(TypeError):
p.add(USEquityPricing.open, "open")
def test_add(self):
p = Pipeline()
f = SomeFactor()
p.add(f, 'f')
self.assertEqual(p.columns, {'f': f})
p.add(f > 5, 'g')
self.assertEqual(p.columns, {'f': f, 'g': f > 5})
with self.assertRaises(TypeError):
p.add(f, 1)
with self.assertRaises(TypeError):
p.add(USEquityPricing.open, 'open')
def test_custom_query_time_tz(self):
df = self.df.copy()
df['timestamp'] = (
pd.DatetimeIndex(df['timestamp'], tz='EST') +
timedelta(hours=8, minutes=44)
).tz_convert('utc').tz_localize(None)
df.ix[3:5, 'timestamp'] = pd.Timestamp('2014-01-01 13:45')
expr = bz.data(df, name='expr', dshape=self.dshape)
loader = BlazeLoader(data_query_time=time(8, 45), data_query_tz='EST')
ds = from_blaze(
expr,
loader=loader,
no_deltas_rule=no_deltas_rules.ignore,
missing_values=self.missing_values,
)
p = Pipeline()
p.add(ds.value.latest, 'value')
p.add(ds.int_value.latest, 'int_value')
dates = self.dates
with tmp_asset_finder() as finder:
result = SimplePipelineEngine(
loader,
dates,
finder,
).run_pipeline(p, dates[0], dates[-1])
expected = df.drop('asof_date', axis=1)
expected['timestamp'] = expected['timestamp'].dt.normalize().astype(
'datetime64[ns]',
).dt.tz_localize('utc')
expected.ix[3:5, 'timestamp'] += timedelta(days=1)
expected.set_index(['timestamp', 'sid'], inplace=True)
expected.index = pd.MultiIndex.from_product((
expected.index.levels[0],
finder.retrieve_all(expected.index.levels[1]),
))
assert_frame_equal(result, expected, check_dtype=False)
def factor_pipe(context):
'''
function to set up a pipeline to retrieve all active syms.
We can add filters here as well.
'''
pipe = Pipeline()
sma_20 = SimpleMovingAverage(inputs=[EquityPricing.close],
window_length=20)
# Pick the top 50% of stocks ranked by dollar volume
dollar_volume = AvgDailyDollarVolumeTraded(window_length=252)
high_dollar_volume = dollar_volume.percentile_between(50, 100)
# Remove penny stocks
no_penny_stocks = sma_20 > 1
filtered_assets = high_dollar_volume & no_penny_stocks
pipe.set_screen(filtered_assets)
pipe.add(sma_20, 'sma_20')
for m in context.agent.models:
pipe.add(m.factor(inputs=[EquityPricing.close], window_length=252),
m.name)
return pipe
def initialize(context):
ws.send(msg_placeholder % "Simulation Start")
pipe = Pipeline()
attach_pipeline(pipe, "volume_pipeline")
# 100 day average dollar volume factor
dollar_volume = AverageDollarVolume(window_length=100)
pipe.add(dollar_volume, "100_day_dollar_volume")
# filter out only the top stocks by dollar volume
high_dollar_volume = dollar_volume.percentile_between(99, 100)
pipe.set_screen(high_dollar_volume)
# set the global variables
context.dev_multiplier = 2
context.max_notional = 1000000
context.min_notional = -1000000
context.days_traded = 0
ws.send(msg_placeholder % "Pipeline filter attached")
schedule_function(func=choose_and_order,
date_rule=date_rules.every_day())
def test_add(self):
p = Pipeline('test')
f = SomeFactor()
p.add(f, 'f')
self.assertEqual(p.columns, {'f': f})
p.add(f > 5, 'g')
self.assertEqual(p.columns, {'f': f, 'g': f > 5})
with self.assertRaises(TypeError):
p.add(f, 1)
def test_add(self):
p = Pipeline()
f = SomeFactor()
p.add(f, "f")
self.assertEqual(p.columns, {"f": f})
p.add(f > 5, "g")
self.assertEqual(p.columns, {"f": f, "g": f > 5})
with self.assertRaises(TypeError):
p.add(f, 1)
def test_overwrite(self):
p = Pipeline()
f = SomeFactor()
other_f = SomeOtherFactor()
p.add(f, "f")
assert p.columns == {"f": f}
with pytest.raises(KeyError, match="Column 'f' already exists."):
p.add(other_f, "f")
p.add(other_f, "f", overwrite=True)
assert p.columns == {"f": other_f}
def initialize(context):
pipe = Pipeline()
attach_pipeline(pipe, "example")
sma_short = SimpleMovingAverage(inputs=[USEquityPricing.close], window_length=30)
sma_long = SimpleMovingAverage(inputs=[USEquityPricing.close], window_length=100)
# Combined factors to create new factors
sma_val = sma_short / sma_long
# Create and apply a screen to remove penny stocks
remove_penny_stocks = sma_short > 1.0
pipe.set_screen(remove_penny_stocks)
pipe.add(sma_short, "sma_short")
pipe.add(sma_long, "sma_long")
pipe.add(sma_val, "sma_val")
# Rank a factor using a mask to ignore the values we're
# filtering out by passing mask=remove_penny_stocks to rank.
pipe.add(sma_val.rank(mask=remove_penny_stocks), "sma_rank")
def test_overwrite(self):
p = Pipeline()
f = SomeFactor()
other_f = SomeOtherFactor()
p.add(f, 'f')
self.assertEqual(p.columns, {'f': f})
with self.assertRaises(KeyError) as e:
p.add(other_f, 'f')
[message] = e.exception.args
self.assertEqual(message, "Column 'f' already exists.")
p.add(other_f, 'f', overwrite=True)
self.assertEqual(p.columns, {'f': other_f})
def test_overwrite(self):
p = Pipeline()
f = SomeFactor()
other_f = SomeOtherFactor()
p.add(f, 'f')
self.assertEqual(p.columns, {'f': f})
with self.assertRaises(KeyError) as e:
p.add(other_f, 'f')
[message] = e.exception.args
self.assertEqual(message, "Column 'f' already exists.")
p.add(other_f, 'f', overwrite=True)
self.assertEqual(p.columns, {'f': other_f})
def initialize(context):
"""
use our factors to add our pipes and screens.
"""
pipe = Pipeline()
mkt_cap = MarketEquity()
pipe.add(mkt_cap, 'market_cap')
book_equity = BookEquity()
# book equity over market equity
be_me = book_equity / mkt_cap
pipe.add(be_me, 'be_me')
returns = Returns()
pipe.add(returns, 'returns')
attach_pipeline(pipe, 'ff_example')
schedule_function(
func=myfunc,
date_rule=date_rules.month_end())
def test_factor_with_multiple_outputs(self):
dates = self.dates[5:10]
assets = self.assets
asset_ids = self.asset_ids
constants = self.constants
open = USEquityPricing.open
close = USEquityPricing.close
engine = SimplePipelineEngine(lambda column: self.loader, self.dates, self.asset_finder)
def create_expected_results(expected_value, mask):
expected_values = where(mask, expected_value, nan)
return DataFrame(expected_values, index=dates, columns=assets)
cascading_mask = AssetIDPlusDay() < (asset_ids[-1] + dates[0].day)
expected_cascading_mask_result = array(
[
[True, True, True, False],
[True, True, False, False],
[True, False, False, False],
[False, False, False, False],
[False, False, False, False],
],
dtype=bool,
)
alternating_mask = (AssetIDPlusDay() % 2).eq(0)
expected_alternating_mask_result = array(
[
[False, True, False, True],
[True, False, True, False],
[False, True, False, True],
[True, False, True, False],
[False, True, False, True],
],
dtype=bool,
)
expected_no_mask_result = array(
[
[True, True, True, True],
[True, True, True, True],
[True, True, True, True],
[True, True, True, True],
[True, True, True, True],
],
dtype=bool,
)
masks = cascading_mask, alternating_mask, NotSpecified
expected_mask_results = (
expected_cascading_mask_result,
expected_alternating_mask_result,
expected_no_mask_result,
)
for mask, expected_mask in zip(masks, expected_mask_results):
open_price, close_price = MultipleOutputs(mask=mask)
pipeline = Pipeline(columns={"open_price": open_price, "close_price": close_price})
if mask is not NotSpecified:
pipeline.add(mask, "mask")
results = engine.run_pipeline(pipeline, dates[0], dates[-1])
for colname, case_column in (("open_price", open), ("close_price", close)):
if mask is not NotSpecified:
mask_results = results["mask"].unstack()
check_arrays(mask_results.values, expected_mask)
output_results = results[colname].unstack()
output_expected = create_expected_results(constants[case_column], expected_mask)
assert_frame_equal(output_results, output_expected)
def test_correlation_factors(self, returns_length, correlation_length):
"""
Tests for the built-in factors `RollingPearsonOfReturns` and
`RollingSpearmanOfReturns`.
"""
assets = self.assets
my_asset = self.my_asset
my_asset_column = self.my_asset_column
dates = self.dates
start_date = self.pipeline_start_date
end_date = self.pipeline_end_date
start_date_index = self.start_date_index
end_date_index = self.end_date_index
num_days = self.num_days
run_pipeline = self.run_pipeline
returns = Returns(window_length=returns_length)
masks = (self.cascading_mask, self.alternating_mask, NotSpecified)
expected_mask_results = (
self.expected_cascading_mask_result,
self.expected_alternating_mask_result,
self.expected_no_mask_result,
)
for mask, expected_mask in zip(masks, expected_mask_results):
pearson_factor = RollingPearsonOfReturns(
target=my_asset,
returns_length=returns_length,
correlation_length=correlation_length,
mask=mask,
)
spearman_factor = RollingSpearmanOfReturns(
target=my_asset,
returns_length=returns_length,
correlation_length=correlation_length,
mask=mask,
)
columns = {
'pearson_factor': pearson_factor,
'spearman_factor': spearman_factor,
}
pipeline = Pipeline(columns=columns)
if mask is not NotSpecified:
pipeline.add(mask, 'mask')
results = run_pipeline(pipeline, start_date, end_date)
pearson_results = results['pearson_factor'].unstack()
spearman_results = results['spearman_factor'].unstack()
if mask is not NotSpecified:
mask_results = results['mask'].unstack()
check_arrays(mask_results.values, expected_mask)
# Run a separate pipeline that calculates returns starting
# (correlation_length - 1) days prior to our start date. This is
# because we need (correlation_length - 1) extra days of returns to
# compute our expected correlations.
results = run_pipeline(
Pipeline(columns={'returns': returns}),
dates[start_date_index - (correlation_length - 1)],
dates[end_date_index],
)
returns_results = results['returns'].unstack()
# On each day, calculate the expected correlation coefficients
# between the asset we are interested in and each other asset. Each
# correlation is calculated over `correlation_length` days.
expected_pearson_results = full_like(pearson_results, nan)
expected_spearman_results = full_like(spearman_results, nan)
for day in range(num_days):
todays_returns = returns_results.iloc[
day:day + correlation_length
]
my_asset_returns = todays_returns.iloc[:, my_asset_column]
for asset, other_asset_returns in todays_returns.iteritems():
asset_column = int(asset) - 1
expected_pearson_results[day, asset_column] = pearsonr(
my_asset_returns, other_asset_returns,
)[0]
expected_spearman_results[day, asset_column] = spearmanr(
my_asset_returns, other_asset_returns,
)[0]
expected_pearson_results = DataFrame(
data=where(expected_mask, expected_pearson_results, nan),
index=dates[start_date_index:end_date_index + 1],
columns=assets,
)
assert_frame_equal(pearson_results, expected_pearson_results)
expected_spearman_results = DataFrame(
data=where(expected_mask, expected_spearman_results, nan),
index=dates[start_date_index:end_date_index + 1],
columns=assets,
)
assert_frame_equal(spearman_results, expected_spearman_results)
def test_regression_of_returns_factor(self,
returns_length,
regression_length):
"""
Tests for the built-in factor `RollingLinearRegressionOfReturns`.
"""
assets = self.assets
my_asset = self.my_asset
my_asset_column = self.my_asset_column
dates = self.dates
start_date = self.pipeline_start_date
end_date = self.pipeline_end_date
start_date_index = self.start_date_index
end_date_index = self.end_date_index
num_days = self.num_days
run_pipeline = self.run_pipeline
# The order of these is meant to align with the output of `linregress`.
outputs = ['beta', 'alpha', 'r_value', 'p_value', 'stderr']
returns = Returns(window_length=returns_length)
masks = self.cascading_mask, self.alternating_mask, NotSpecified
expected_mask_results = (
self.expected_cascading_mask_result,
self.expected_alternating_mask_result,
self.expected_no_mask_result,
)
for mask, expected_mask in zip(masks, expected_mask_results):
regression_factor = RollingLinearRegressionOfReturns(
target=my_asset,
returns_length=returns_length,
regression_length=regression_length,
mask=mask,
)
columns = {
output: getattr(regression_factor, output)
for output in outputs
}
pipeline = Pipeline(columns=columns)
if mask is not NotSpecified:
pipeline.add(mask, 'mask')
results = run_pipeline(pipeline, start_date, end_date)
if mask is not NotSpecified:
mask_results = results['mask'].unstack()
check_arrays(mask_results.values, expected_mask)
output_results = {}
expected_output_results = {}
for output in outputs:
output_results[output] = results[output].unstack()
expected_output_results[output] = full_like(
output_results[output], nan,
)
# Run a separate pipeline that calculates returns starting
# (regression_length - 1) days prior to our start date. This is
# because we need (regression_length - 1) extra days of returns to
# compute our expected regressions.
results = run_pipeline(
Pipeline(columns={'returns': returns}),
dates[start_date_index - (regression_length - 1)],
dates[end_date_index],
)
returns_results = results['returns'].unstack()
# On each day, calculate the expected regression results for Y ~ X
# where Y is the asset we are interested in and X is each other
# asset. Each regression is calculated over `regression_length`
# days of data.
for day in range(num_days):
todays_returns = returns_results.iloc[
day:day + regression_length
]
my_asset_returns = todays_returns.iloc[:, my_asset_column]
for asset, other_asset_returns in todays_returns.iteritems():
asset_column = int(asset) - 1
expected_regression_results = linregress(
y=other_asset_returns, x=my_asset_returns,
)
for i, output in enumerate(outputs):
expected_output_results[output][day, asset_column] = \
expected_regression_results[i]
for output in outputs:
output_result = output_results[output]
expected_output_result = DataFrame(
where(expected_mask, expected_output_results[output], nan),
index=dates[start_date_index:end_date_index + 1],
columns=assets,
)
assert_frame_equal(output_result, expected_output_result)
def initialize(context):
p = Pipeline('test')
p.add(USEquityPricing.close.latest, 'close')
attach_pipeline(p)