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Merge branch 'fix-docs' of https://github.com/stash86/freqtrade into fix-docs

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This commit is contained in:
Stefano Ariestasia
2022-01-22 06:54:57 +00:00
parent 05046b9eef bb1d8fb54f
commit f79decdb9c
18 changed files with 195 additions and 68 deletions
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2
freqtrade/commands/arguments.py
View File

@@ -24,7 +24,7 @@ ARGS_COMMON_OPTIMIZE = ["timeframe", "timerange", "dataformat_ohlcv",
ARGS_BACKTEST = ARGS_COMMON_OPTIMIZE + ["position_stacking", "use_max_market_positions",
"enable_protections", "dry_run_wallet", "timeframe_detail",
"strategy_list", "export", "exportfilename",
"backtest_breakdown", "no_backtest_cache"]
"backtest_breakdown", "backtest_cache"]
ARGS_HYPEROPT = ARGS_COMMON_OPTIMIZE + ["hyperopt", "hyperopt_path",
"position_stacking", "use_max_market_positions",

9
freqtrade/commands/cli_options.py
View File

@@ -205,10 +205,11 @@ AVAILABLE_CLI_OPTIONS = {
nargs='+',
choices=constants.BACKTEST_BREAKDOWNS
),
"no_backtest_cache": Arg(
'--no-cache',
help='Do not reuse cached backtest results.',
action='store_true'
"backtest_cache": Arg(
'--cache',
help='Load a cached backtest result no older than specified age (default: %(default)s).',
default=constants.BACKTEST_CACHE_DEFAULT,
choices=constants.BACKTEST_CACHE_AGE,
),
# Edge
"stoploss_range": Arg(

4
freqtrade/configuration/configuration.py
View File

@@ -276,8 +276,8 @@ class Configuration:
self._args_to_config(config, argname='backtest_breakdown',
logstring='Parameter --breakdown detected ...')
self._args_to_config(config, argname='no_backtest_cache',
logstring='Parameter --no-cache detected ...')
self._args_to_config(config, argname='backtest_cache',
logstring='Parameter --cache={} detected ...')
self._args_to_config(config, argname='disableparamexport',
logstring='Parameter --disableparamexport detected: {} ...')

2
freqtrade/constants.py
View File

@@ -34,6 +34,8 @@ AVAILABLE_PAIRLISTS = ['StaticPairList', 'VolumePairList',
AVAILABLE_PROTECTIONS = ['CooldownPeriod', 'LowProfitPairs', 'MaxDrawdown', 'StoplossGuard']
AVAILABLE_DATAHANDLERS = ['json', 'jsongz', 'hdf5']
BACKTEST_BREAKDOWNS = ['day', 'week', 'month']
BACKTEST_CACHE_AGE = ['none', 'day', 'week', 'month']
BACKTEST_CACHE_DEFAULT = 'day'
DRY_RUN_WALLET = 1000
DATETIME_PRINT_FORMAT = '%Y-%m-%d %H:%M:%S'
MATH_CLOSE_PREC = 1e-14 # Precision used for float comparisons

54
freqtrade/data/btanalysis.py
View File

@@ -3,6 +3,7 @@ Helpers when analyzing backtest data
"""
import logging
from copy import copy
from datetime import datetime, timezone
from pathlib import Path
from typing import Any, Dict, List, Optional, Tuple, Union
@@ -99,6 +100,9 @@ def get_latest_hyperopt_file(directory: Union[Path, str], predef_filename: str =
if isinstance(directory, str):
directory = Path(directory)
if predef_filename:
if Path(predef_filename).is_absolute():
raise OperationalException(
"--hyperopt-filename expects only the filename, not an absolute path.")
return directory / predef_filename
return directory / get_latest_hyperopt_filename(directory)
@@ -143,12 +147,24 @@ def load_backtest_stats(filename: Union[Path, str]) -> Dict[str, Any]:
return data
def find_existing_backtest_stats(dirname: Union[Path, str],
run_ids: Dict[str, str]) -> Dict[str, Any]:
def _load_and_merge_backtest_result(strategy_name: str, filename: Path, results: Dict[str, Any]):
bt_data = load_backtest_stats(filename)
for k in ('metadata', 'strategy'):
results[k][strategy_name] = bt_data[k][strategy_name]
comparison = bt_data['strategy_comparison']
for i in range(len(comparison)):
if comparison[i]['key'] == strategy_name:
results['strategy_comparison'].append(comparison[i])
break
def find_existing_backtest_stats(dirname: Union[Path, str], run_ids: Dict[str, str],
min_backtest_date: datetime = None) -> Dict[str, Any]:
"""
Find existing backtest stats that match specified run IDs and load them.
:param dirname: pathlib.Path object, or string pointing to the file.
:param run_ids: {strategy_name: id_string} dictionary.
:param min_backtest_date: do not load a backtest older than specified date.
:return: results dict.
"""
# Copy so we can modify this dict without affecting parent scope.
@@ -169,18 +185,30 @@ def find_existing_backtest_stats(dirname: Union[Path, str],
break
for strategy_name, run_id in list(run_ids.items()):
if metadata.get(strategy_name, {}).get('run_id') == run_id:
# TODO: load_backtest_stats() may load an old version of backtest which is
# incompatible with current version.
strategy_metadata = metadata.get(strategy_name, None)
if not strategy_metadata:
# This strategy is not present in analyzed backtest.
continue
if min_backtest_date is not None:
try:
backtest_date = strategy_metadata['backtest_start_time']
except KeyError:
# TODO: this can be removed starting from feb 2022
# The metadata-file without start_time was only available in develop
# and was never included in an official release.
# Older metadata format without backtest time, too old to consider.
return results
backtest_date = datetime.fromtimestamp(backtest_date, tz=timezone.utc)
if backtest_date < min_backtest_date:
# Do not use a cached result for this strategy as first result is too old.
del run_ids[strategy_name]
continue
if strategy_metadata['run_id'] == run_id:
del run_ids[strategy_name]
bt_data = load_backtest_stats(filename)
for k in ('metadata', 'strategy'):
results[k][strategy_name] = bt_data[k][strategy_name]
comparison = bt_data['strategy_comparison']
for i in range(len(comparison)):
if comparison[i]['key'] == strategy_name:
results['strategy_comparison'].append(comparison[i])
break
_load_and_merge_backtest_result(strategy_name, filename, results)
if len(run_ids) == 0:
break
return results

47
freqtrade/optimize/backtesting.py
View File

@@ -11,6 +11,7 @@ from typing import Any, Dict, List, Optional, Tuple
from pandas import DataFrame
from freqtrade import constants
from freqtrade.configuration import TimeRange, validate_config_consistency
from freqtrade.constants import DATETIME_PRINT_FORMAT
from freqtrade.data import history
@@ -64,6 +65,7 @@ class Backtesting:
self.results: Dict[str, Any] = {}
config['dry_run'] = True
self.run_ids: Dict[str, str] = {}
self.strategylist: List[IStrategy] = []
self.all_results: Dict[str, Dict] = {}
@@ -728,7 +730,7 @@ class Backtesting:
)
backtest_end_time = datetime.now(timezone.utc)
results.update({
'run_id': get_strategy_run_id(strat),
'run_id': self.run_ids.get(strat.get_strategy_name(), ''),
'backtest_start_time': int(backtest_start_time.timestamp()),
'backtest_end_time': int(backtest_end_time.timestamp()),
})
@@ -736,6 +738,33 @@ class Backtesting:
return min_date, max_date
def _get_min_cached_backtest_date(self):
min_backtest_date = None
backtest_cache_age = self.config.get('backtest_cache', constants.BACKTEST_CACHE_DEFAULT)
if self.timerange.stopts == 0 or datetime.fromtimestamp(
self.timerange.stopts, tz=timezone.utc) > datetime.now(tz=timezone.utc):
logger.warning('Backtest result caching disabled due to use of open-ended timerange.')
elif backtest_cache_age == 'day':
min_backtest_date = datetime.now(tz=timezone.utc) - timedelta(days=1)
elif backtest_cache_age == 'week':
min_backtest_date = datetime.now(tz=timezone.utc) - timedelta(weeks=1)
elif backtest_cache_age == 'month':
min_backtest_date = datetime.now(tz=timezone.utc) - timedelta(weeks=4)
return min_backtest_date
def load_prior_backtest(self):
self.run_ids = {
strategy.get_strategy_name(): get_strategy_run_id(strategy)
for strategy in self.strategylist
}
# Load previous result that will be updated incrementally.
# This can be circumvented in certain instances in combination with downloading more data
min_backtest_date = self._get_min_cached_backtest_date()
if min_backtest_date is not None:
self.results = find_existing_backtest_stats(
self.config['user_data_dir'] / 'backtest_results', self.run_ids, min_backtest_date)
def start(self) -> None:
"""
Run backtesting end-to-end
@@ -747,21 +776,7 @@ class Backtesting:
self.load_bt_data_detail()
logger.info("Dataload complete. Calculating indicators")
run_ids = {
strategy.get_strategy_name(): get_strategy_run_id(strategy)
for strategy in self.strategylist
}
# Load previous result that will be updated incrementally.
# This can be circumvented in certain instances in combination with downloading more data
if self.timerange.stopts == 0 or datetime.fromtimestamp(
self.timerange.stopts, tz=timezone.utc) > datetime.now(tz=timezone.utc):
self.config['no_backtest_cache'] = True
logger.warning('Backtest result caching disabled due to use of open-ended timerange.')
if not self.config.get('no_backtest_cache', False):
self.results = find_existing_backtest_stats(
self.config['user_data_dir'] / 'backtest_results', run_ids)
self.load_prior_backtest()
for strat in self.strategylist:
if self.results and strat.get_strategy_name() in self.results['strategy']:

1
freqtrade/optimize/hyperopt_tools.py
View File

@@ -137,6 +137,7 @@ class HyperoptTools():
}
if not HyperoptTools._test_hyperopt_results_exist(results_file):
# No file found.
logger.warning(f"Hyperopt file {results_file} not found.")
return [], 0
epochs = []

3
freqtrade/optimize/optimize_reports.py
View File

@@ -527,7 +527,8 @@ def generate_backtest_stats(btdata: Dict[str, DataFrame],
strat_stats = generate_strategy_stats(pairlist, strategy, content,
min_date, max_date, market_change=market_change)
metadata[strategy] = {
'run_id': content['run_id']
'run_id': content['run_id'],
'backtest_start_time': content['backtest_start_time'],
}
result['strategy'][strategy] = strat_stats

10
freqtrade/plot/plotting.py
View File

@@ -235,10 +235,12 @@ def plot_trades(fig, trades: pd.DataFrame) -> make_subplots:
# Trades can be empty
if trades is not None and len(trades) > 0:
# Create description for sell summarizing the trade
trades['desc'] = trades.apply(lambda row: f"{row['profit_ratio']:.2%}, "
f"{row['sell_reason']}, "
f"{row['trade_duration']} min",
axis=1)
trades['desc'] = trades.apply(
lambda row: f"{row['profit_ratio']:.2%}, " +
(f"{row['buy_tag']}, " if row['buy_tag'] is not None else "") +
f"{row['sell_reason']}, " +
f"{row['trade_duration']} min",
axis=1)
trade_buys = go.Scatter(
x=trades["open_date"],
y=trades["open_rate"],

27
freqtrade/rpc/api_server/api_backtest.py
View File

@@ -39,7 +39,8 @@ async def api_start_backtest(bt_settings: BacktestRequest, background_tasks: Bac
# Start backtesting
# Initialize backtesting object
def run_backtest():
from freqtrade.optimize.optimize_reports import generate_backtest_stats
from freqtrade.optimize.optimize_reports import (generate_backtest_stats,
store_backtest_stats)
from freqtrade.resolvers import StrategyResolver
asyncio.set_event_loop(asyncio.new_event_loop())
try:
@@ -76,13 +77,25 @@ async def api_start_backtest(bt_settings: BacktestRequest, background_tasks: Bac
lastconfig['enable_protections'] = btconfig.get('enable_protections')
lastconfig['dry_run_wallet'] = btconfig.get('dry_run_wallet')
ApiServer._bt.abort = False
min_date, max_date = ApiServer._bt.backtest_one_strategy(
strat, ApiServer._bt_data, ApiServer._bt_timerange)
ApiServer._bt.results = {}
ApiServer._bt.load_prior_backtest()
ApiServer._bt.abort = False
if (ApiServer._bt.results and
strat.get_strategy_name() in ApiServer._bt.results['strategy']):
# When previous result hash matches - reuse that result and skip backtesting.
logger.info(f'Reusing result of previous backtest for {strat.get_strategy_name()}')
else:
min_date, max_date = ApiServer._bt.backtest_one_strategy(
strat, ApiServer._bt_data, ApiServer._bt_timerange)
ApiServer._bt.results = generate_backtest_stats(
ApiServer._bt_data, ApiServer._bt.all_results,
min_date=min_date, max_date=max_date)
if btconfig.get('export', 'none') == 'trades':
store_backtest_stats(btconfig['exportfilename'], ApiServer._bt.results)
ApiServer._bt.results = generate_backtest_stats(
ApiServer._bt_data, ApiServer._bt.all_results,
min_date=min_date, max_date=max_date)
logger.info("Backtest finished.")
except DependencyException as e: