feat(Events): added EventFilter, EventLabeller (#186)

This commit is contained in:
Mark Aron Szulyovszky
2022-01-26 23:22:43 +01:00
committed by GitHub
parent 1042c82333
commit 42a1bc59cb
65 changed files with 759 additions and 276571 deletions
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from .collections import data_collections
from .load import load_data, load_only_returns
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from utils.types import Path, FileName, DataSource, DataCollection
from .types import Path, FileName, DataSource, DataCollection
from utils.helpers import flatten
def transform_to_data_collection(path: str, file_names: list[str]) -> DataCollection:
@@ -10,7 +10,7 @@ __daily_crypto = ["ADA_USD", "BCH_USD", "BNB_USD", "BTC_USD", "DOT_USD", "ETC_US
__daily_crypto_lightweight = ["ADA_USD", "BCH_USD"]
__hourly_crypto = ["BTC_USD", "DASH_USD", "ETC_USD", "ETH_USD", "LTC_USD", "TRX_USD", "XLM_USD", "XMR_USD", "XRP_USD"]
__minute_crypto = ["BTC_USD", "DASH_USD", "ETC_USD", "ETH_USD", "LTC_USD", "TRX_USD", "XLM_USD", "XMR_USD"]
__daily_glassnode = ['rhodl_ratio',
# 'cvdd',
@@ -45,7 +45,7 @@ data_collections = dict(
daily_crypto = transform_to_data_collection("data/daily_crypto", __daily_crypto),
daily_crypto_lightweight = transform_to_data_collection("data/daily_crypto", __daily_crypto_lightweight),
daily_etf = transform_to_data_collection("data/daily_etf", __daily_etf),
hourly_crypto = transform_to_data_collection("data/hourly_crypto", __hourly_crypto),
minute_crypto = transform_to_data_collection("data/minute_crypto", __minute_crypto),
daily_glassnode =transform_to_data_collection("data/daily_glassnode", __daily_glassnode),
)
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import pandas as pd
import numpy as np
from .types import DataSource
from feature_extractors.types import FeatureExtractor
from utils.helpers import drop_columns_if_exist
from data_loader.collections import DataCollection
from typing import Literal
import ray
import os
from config.hashing import hash_data_config
from .types import XDataFrame, ReturnSeries, ForwardReturnSeries
from diskcache import Cache
cache = Cache(".cachedir/data")
def load_data(**kwargs) -> tuple[XDataFrame, ReturnSeries, ForwardReturnSeries]:
hashed = hash_data_config(kwargs)
if hashed in cache:
return cache.get(hashed)
else:
return_value = __load_data(**kwargs)
cache[hashed] = return_value
return return_value
def __load_data(assets: DataCollection,
other_assets: DataCollection,
exogenous_data: DataCollection,
target_asset: DataSource,
load_non_target_asset: bool,
own_features: list[tuple[str, FeatureExtractor, list[int]]],
other_features: list[tuple[str, FeatureExtractor, list[int]]],
exogenous_features: list[tuple[str, FeatureExtractor, list[int]]],
) -> tuple[XDataFrame, ReturnSeries, ForwardReturnSeries]:
"""
Loads asset data from the specified path.
Returns:
- DataFrame `X` with all the training data
- Series `returns` with only the returns
- Series `forward_returns` with the target asset returns shifted by 1 day
"""
target_file = [f for f in assets if f[1].startswith(target_asset[1])]
assert len(target_file) == 1, "There should be exactly one target file"
other_files = [f for f in assets if load_non_target_asset == True and f[1].startswith(target_asset[1]) == False]
files = other_files + other_assets
target_asset_future = [__load_df.remote(
data_source=data_source,
prefix=data_source[1],
returns='log_returns',
feature_extractors=own_features,
) for data_source in target_file]
target_asset_df = ray.get(target_asset_future)
target_asset_only_returns_future = __load_df.remote(
data_source=target_file[0],
prefix=target_file[0][1],
returns='returns',
feature_extractors=[],
)
df_target_asset_only_returns = ray.get(target_asset_only_returns_future)
asset_futures = [__load_df.remote(
data_source=data_source,
prefix=data_source[1],
returns='log_returns',
feature_extractors=other_features,
) for data_source in files]
asset_dfs = ray.get(asset_futures)
exogenous_futures = [__load_df.remote(
data_source=data_source,
prefix=data_source[1],
returns='none',
feature_extractors=exogenous_features,
) for data_source in exogenous_data]
exogenous_dfs = ray.get(exogenous_futures)
X = target_asset_df + asset_dfs + exogenous_dfs
X = pd.concat([df.sort_index().reindex(X[0].index) for df in X], axis=1).fillna(0.)
X.index = pd.DatetimeIndex(X.index)
## Create target
returns = df_target_asset_only_returns[target_asset[1] + '_returns']
returns.index = pd.DatetimeIndex(X.index)
forward_returns = __create_target_cum_forward_returns(returns, 1)
forward_returns.index = pd.DatetimeIndex(X.index)
# we need to null out the last forward returns row, because when doing forward-shifting, we automatically get the first row, which is definitely incorrect
forward_returns[forward_returns.index[-1]] = 0.
return X, returns, forward_returns
@ray.remote
def __load_df(data_source: DataSource,
prefix: str,
returns: Literal['none', 'price', 'returns', 'log_returns'],
feature_extractors: list[tuple[str, FeatureExtractor, list[int]]]) -> pd.DataFrame:
df = pd.read_csv(os.path.join(data_source[0], data_source[1] + '.csv'), header=0, index_col=0).fillna(0)
if returns == 'log_returns':
df['returns'] = np.log(df['close']).diff(1)
elif returns == 'price':
df['returns'] = df['close']
elif returns == 'returns':
df['returns'] = df['close'].pct_change()
df = __apply_feature_extractors(df, feature_extractors = feature_extractors)
df = df.replace([np.inf, -np.inf], 0.)
df = drop_columns_if_exist(df, ['open', 'high', 'low', 'close', 'volume'])
df.columns = [prefix + "_" + c if 'date' not in c else c for c in df.columns]
return df
def __apply_feature_extractors(df: pd.DataFrame, feature_extractors: list[tuple[str, FeatureExtractor, list[int]]]) -> pd.DataFrame:
for name, extractor, periods in feature_extractors:
for period in periods:
features = extractor(df, period)
if type(features) == pd.DataFrame:
df = pd.concat([df, features], axis=1)
elif type(features) == pd.Series:
df[name + '_' + str(period)] = features
else:
assert False, "Feature extractor must return a pd.DataFrame or pd.Series"
return df
def __create_target_cum_forward_returns(series: pd.Series, period: int) -> pd.Series:
assert period > 0
return series.shift(-period).copy()
def load_only_returns(assets: DataCollection, returns: Literal['price', 'returns']) -> pd.DataFrame:
assets_future = [__load_df.remote(
data_source=data_source,
prefix=data_source[1],
returns=returns,
feature_extractors=[],
) for data_source in assets]
dfs = ray.get(assets_future)
dfs = pd.concat(dfs, axis=1)
dfs.index = pd.DatetimeIndex(dfs.index)
return dfs
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import pandas as pd
import numpy as np
from utils.types import DataSource, FeatureExtractor
from utils.helpers import deduplicate_indexes, drop_columns_if_exist
from data_loader.collections import DataCollection
from typing import Literal
import ray
import os
from config.hashing import hash_data_config
from diskcache import Cache
cache = Cache(".cachedir/data")
def load_data(**kwargs) -> tuple[pd.DataFrame, pd.Series, pd.Series]:
hashed = hash_data_config(kwargs)
if hashed in cache:
return cache.get(hashed)
else:
return_value = __load_data(**kwargs)
cache[hashed] = return_value
return return_value
def __load_data(assets: DataCollection,
other_assets: DataCollection,
exogenous_data: DataCollection,
target_asset: DataSource,
load_non_target_asset: bool,
log_returns: bool,
forecasting_horizon: int,
own_features: list[tuple[str, FeatureExtractor, list[int]]],
other_features: list[tuple[str, FeatureExtractor, list[int]]],
exogenous_features: list[tuple[str, FeatureExtractor, list[int]]],
no_of_classes: Literal['two', 'three-balanced', 'three-imbalanced'],
) -> tuple[pd.DataFrame, pd.Series, pd.Series]:
"""
Loads asset data from the specified path.
Returns:
- DataFrame `X` with all the training data
- Series `y` with the target asset returns shifted by 1 day OR if it's a classification problem, the target class)
- Series `forward_returns` with the target asset returns shifted by 1 day
"""
target_file = [f for f in assets if f[1].startswith(target_asset[1])]
assert len(target_file) == 1, "There should be exactly one target file"
other_files = [f for f in assets if load_non_target_asset == True and f[1].startswith(target_asset[1]) == False]
files = other_files + other_assets
target_asset_future = [__load_df.remote(
data_source=data_source,
prefix=data_source[1],
returns='log_returns' if log_returns else 'returns',
feature_extractors=own_features,
) for data_source in target_file]
target_asset_df = ray.get(target_asset_future)
target_asset_only_returns_future = __load_df.remote(
data_source=target_file[0],
prefix=target_file[0][1],
returns='returns',
feature_extractors=[],
)
df_target_asset_only_returns = ray.get(target_asset_only_returns_future)
asset_futures = [__load_df.remote(
data_source=data_source,
prefix=data_source[1],
returns='log_returns' if log_returns else 'returns',
feature_extractors=other_features,
) for data_source in files]
asset_dfs = ray.get(asset_futures)
exogenous_futures = [__load_df.remote(
data_source=data_source,
prefix=data_source[1],
returns='none',
feature_extractors=exogenous_features,
) for data_source in exogenous_data]
exogenous_dfs = ray.get(exogenous_futures)
dfs = target_asset_df + asset_dfs + exogenous_dfs
dfs = [deduplicate_indexes(df) for df in dfs]
target_df = dfs[0]
dfs = pd.concat([df.sort_index().reindex(target_df.index) for df in dfs], axis=1).fillna(0.)
dfs.index = pd.DatetimeIndex(dfs.index)
## Create target
target_col = 'target'
returns_col = target_asset[1] + '_returns'
forward_returns = __create_target_cum_forward_returns(df_target_asset_only_returns, returns_col, forecasting_horizon)
forward_returns.index = pd.DatetimeIndex(dfs.index)
dfs[target_col] = __create_target_classes(dfs, returns_col, forecasting_horizon, no_of_classes)
# we need to drop the last row, because we forward-shift the target (see what happens if you call .shift[-1] on a pd.Series)
dfs = dfs.iloc[:-forecasting_horizon]
forward_returns = forward_returns.iloc[:-forecasting_horizon]
X = dfs.drop(columns=[target_col])
y = dfs[target_col]
return X, y, forward_returns
@ray.remote
def __load_df(data_source: DataSource,
prefix: str,
returns: Literal['none', 'price', 'returns', 'log_returns'],
feature_extractors: list[tuple[str, FeatureExtractor, list[int]]]) -> pd.DataFrame:
df = pd.read_csv(os.path.join(data_source[0], data_source[1] + '.csv'), header=0, index_col=0).fillna(0)
if returns == 'log_returns':
df['returns'] = np.log(df['close']).diff(1)
elif returns == 'price':
df['returns'] = df['close']
elif returns == 'returns':
df['returns'] = df['close'].pct_change()
df = __apply_feature_extractors(df, log_returns=True if returns == 'log_returns' else False, feature_extractors = feature_extractors)
df = df.replace([np.inf, -np.inf], 0.)
df = drop_columns_if_exist(df, ['open', 'high', 'low', 'close', 'volume'])
df.columns = [prefix + "_" + c if 'date' not in c else c for c in df.columns]
return df
def __apply_feature_extractors(df: pd.DataFrame,
log_returns: bool,
feature_extractors: list[tuple[str, FeatureExtractor, list[int]]]) -> pd.DataFrame:
for name, extractor, periods in feature_extractors:
for period in periods:
features = extractor(df, period, log_returns)
if type(features) == pd.DataFrame:
df = pd.concat([df, features], axis=1)
elif type(features) == pd.Series:
df[name + '_' + str(period)] = features
else:
assert False, "Feature extractor must return a pd.DataFrame or pd.Series"
return df
def __create_target_cum_forward_returns(df: pd.DataFrame, source_column: str, period: int) -> pd.Series:
assert period > 0
return df[source_column].shift(-period)
def __create_target_classes(df: pd.DataFrame, source_column: str, period: int, no_of_classes: Literal["two", "three"]) -> pd.Series:
assert period > 0
def get_class_binary(x: float) -> int:
return -1 if x <= 0.0 else 1
def get_class_threeway_balanced(series: pd.Series) -> pd.Series:
def get_bins_threeway(x):
bins = pd.qcut(df[source_column], 3, retbins=True, duplicates = 'drop')[1]
if len(bins) != 4:
# if we don't have enough data for the quantiles, we'll need to add hard-coded values
lower_bound = bins[0]
upper_bound = bins[-1]
bins = [lower_bound] + [-0.02, 0.02] + [upper_bound]
return bins
bins = get_bins_threeway(series)
def map_class_threeway(current_value):
lower_threshold = bins[1]
upper_threshold = bins[2]
if current_value <= lower_threshold:
return -1
elif current_value > lower_threshold and current_value < upper_threshold:
return 0
else:
return 1
return series.map(map_class_threeway)
def get_class_threeway_imbalanced(series: pd.Series) -> pd.Series:
def get_bins_threeway(x):
bins = pd.qcut(df[source_column], 4, retbins=True, duplicates = 'drop')[1]
if len(bins) != 5:
# if we don't have enough data for the quantiles, we'll need to add hard-coded values
lower_bound = bins[0]
upper_bound = bins[-1]
bins = [lower_bound] + [-0.02, 0.0, 0.02] + [upper_bound]
return bins
bins = get_bins_threeway(series)
def map_class_threeway(current_value):
lower_threshold = bins[1]
upper_threshold = bins[3]
if current_value <= lower_threshold:
return -1
elif current_value > lower_threshold and current_value < upper_threshold:
return 0
else:
return 1
return series.map(map_class_threeway)
target_column = df[source_column].shift(-period)
if no_of_classes == "three-balanced":
return get_class_threeway_balanced(target_column)
elif no_of_classes == "three-imbalanced":
return get_class_threeway_imbalanced(target_column)
else:
return target_column.map(get_class_binary)
def datasource_to_file(data_source: DataSource) -> str:
return data_source[0] + '/' + data_source[1] + '.csv'
def load_only_returns(assets: DataCollection, returns: Literal['price', 'returns']) -> pd.DataFrame:
assets_future = [__load_df.remote(
data_source=data_source,
prefix=data_source[1],
returns=returns,
feature_extractors=[],
) for data_source in assets]
target_asset_df = ray.get(assets_future)
dfs = [deduplicate_indexes(df) for df in target_asset_df]
dfs = pd.concat(dfs, axis=1)
dfs.index = pd.DatetimeIndex(dfs.index)
return dfs
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import pandas as pd
from config.types import Config
import warnings
from utils.helpers import get_first_valid_return_index
from data_loader.types import XDataFrame
def check_data(X: XDataFrame, config: Config) -> bool:
""" Returns True if data is valid, else returns False."""
if has_enough_samples_to_train(X, config) == False:
warnings.warn("Not enough samples to train")
return False
return True
def has_enough_samples_to_train(X: XDataFrame, config: Config) -> bool:
first_valid_index = get_first_valid_return_index(X.iloc[:,0])
samples_to_train = len(X) - first_valid_index
return samples_to_train > config.sliding_window_size_base + config.sliding_window_size_meta_labeling + 100
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import pandas as pd
from config.config import Config
from utils.helpers import has_enough_samples_to_train
import warnings
def check_data(X:pd.DataFrame, y:pd.Series, config: Config):
""" Returns True if data is valid, else returns False."""
if has_enough_samples_to_train(X, y, config) == False:
warnings.warn("Not enough samples to train")
return False
return True
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import pandas as pd
Path = str
FileName = str
DataSource = tuple[Path, FileName]
DataCollection = list[DataSource]
ReturnSeries = pd.Series
ForwardReturnSeries = pd.Series
XDataFrame = pd.DataFrame
ySeries = pd.Series
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import pandas as pd
def deduplicate_indexes(df: pd.DataFrame) -> pd.DataFrame: return df[~df.index.duplicated(keep='last')]