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Max relative drawdown

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This commit is contained in:
Nicolas Papp 2022-04-10 12:53:47 -03:00
parent d054916439
commit 47a6ef4f00
5 changed files with 73 additions and 14 deletions
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7
docs/hyperopt.md
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@ -116,7 +116,9 @@ optional arguments:
ShortTradeDurHyperOptLoss, OnlyProfitHyperOptLoss,
SharpeHyperOptLoss, SharpeHyperOptLossDaily,
SortinoHyperOptLoss, SortinoHyperOptLossDaily,
CalmarHyperOptLoss, MaxDrawDownHyperOptLoss, ProfitDrawDownHyperOptLoss
CalmarHyperOptLoss, MaxDrawDownHyperOptLoss,
MaxDrawDownRelativeHyperOptLoss,
ProfitDrawDownHyperOptLoss
--disable-param-export
Disable automatic hyperopt parameter export.
--ignore-missing-spaces, --ignore-unparameterized-spaces
@ -563,7 +565,8 @@ Currently, the following loss functions are builtin:
* `SharpeHyperOptLossDaily` - optimizes Sharpe Ratio calculated on **daily** trade returns relative to standard deviation.
* `SortinoHyperOptLoss` - optimizes Sortino Ratio calculated on trade returns relative to **downside** standard deviation.
* `SortinoHyperOptLossDaily` - optimizes Sortino Ratio calculated on **daily** trade returns relative to **downside** standard deviation.
* `MaxDrawDownHyperOptLoss` - Optimizes Maximum drawdown.
* `MaxDrawDownHyperOptLoss` - Optimizes Maximum absolute drawdown.
* `MaxDrawDownRelativeHyperOptLoss` - Similar as the above, but also optimizes Maximum relative drawdown.
* `CalmarHyperOptLoss` - Optimizes Calmar Ratio calculated on trade returns relative to max drawdown.
* `ProfitDrawDownHyperOptLoss` - Optimizes by max Profit & min Drawdown objective. `DRAWDOWN_MULT` variable within the hyperoptloss file can be adjusted to be stricter or more flexible on drawdown purposes.

3
freqtrade/constants.py
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@ -28,7 +28,8 @@ HYPEROPT_LOSS_BUILTIN = ['ShortTradeDurHyperOptLoss', 'OnlyProfitHyperOptLoss',
'SharpeHyperOptLoss', 'SharpeHyperOptLossDaily',
'SortinoHyperOptLoss', 'SortinoHyperOptLossDaily',
'CalmarHyperOptLoss',
'MaxDrawDownHyperOptLoss', 'ProfitDrawDownHyperOptLoss']
'MaxDrawDownHyperOptLoss', 'MaxDrawDownRelativeHyperOptLoss',
'ProfitDrawDownHyperOptLoss']
AVAILABLE_PAIRLISTS = ['StaticPairList', 'VolumePairList',
'AgeFilter', 'OffsetFilter', 'PerformanceFilter',
'PrecisionFilter', 'PriceFilter', 'RangeStabilityFilter',

23
freqtrade/data/btanalysis.py
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@ -441,18 +441,22 @@ def create_cum_profit(df: pd.DataFrame, trades: pd.DataFrame, col_name: str,
return df
def _calc_drawdown_series(profit_results: pd.DataFrame, *, date_col: str, value_col: str
) -> pd.DataFrame:
def _calc_drawdown_series(profit_results: pd.DataFrame, *, date_col: str, value_col: str,
starting_balance : Optional[float] = 0.0) -> pd.DataFrame:
max_drawdown_df = pd.DataFrame()
max_drawdown_df['cumulative'] = profit_results[value_col].cumsum()
max_drawdown_df['high_value'] = max_drawdown_df['cumulative'].cummax()
max_drawdown_df['drawdown'] = max_drawdown_df['cumulative'] - max_drawdown_df['high_value']
max_drawdown_df['date'] = profit_results.loc[:, date_col]
if starting_balance:
cumulative_balance = starting_balance + max_drawdown_df['cumulative']
max_balance = starting_balance + max_drawdown_df['high_value']
max_drawdown_df['drawdown_relative'] = ((max_balance - cumulative_balance) / max_balance)
return max_drawdown_df
def calculate_underwater(trades: pd.DataFrame, *, date_col: str = 'close_date',
value_col: str = 'profit_ratio'
value_col: str = 'profit_ratio', starting_balance : Optional[float] = 0.0
):
"""
Calculate max drawdown and the corresponding close dates
@ -466,13 +470,14 @@ def calculate_underwater(trades: pd.DataFrame, *, date_col: str = 'close_date',
if len(trades) == 0:
raise ValueError("Trade dataframe empty.")
profit_results = trades.sort_values(date_col).reset_index(drop=True)
max_drawdown_df = _calc_drawdown_series(profit_results, date_col=date_col, value_col=value_col)
max_drawdown_df = _calc_drawdown_series(profit_results, date_col=date_col, value_col=value_col, starting_balance=starting_balance)
return max_drawdown_df
def calculate_max_drawdown(trades: pd.DataFrame, *, date_col: str = 'close_date',
value_col: str = 'profit_abs', starting_balance: float = 0
value_col: str = 'profit_abs', starting_balance: float = 0,
relative: bool = False
) -> Tuple[float, pd.Timestamp, pd.Timestamp, float, float, float]:
"""
Calculate max drawdown and the corresponding close dates
@ -488,9 +493,9 @@ def calculate_max_drawdown(trades: pd.DataFrame, *, date_col: str = 'close_date'
if len(trades) == 0:
raise ValueError("Trade dataframe empty.")
profit_results = trades.sort_values(date_col).reset_index(drop=True)
max_drawdown_df = _calc_drawdown_series(profit_results, date_col=date_col, value_col=value_col)
max_drawdown_df = _calc_drawdown_series(profit_results, date_col=date_col, value_col=value_col, starting_balance=starting_balance)
idxmin = max_drawdown_df['drawdown'].idxmin()
idxmin = max_drawdown_df['drawdown_relative'].idxmax() if relative else max_drawdown_df['drawdown'].idxmin()
if idxmin == 0:
raise ValueError("No losing trade, therefore no drawdown.")
high_date = profit_results.loc[max_drawdown_df.iloc[:idxmin]['high_value'].idxmax(), date_col]
@ -499,8 +504,8 @@ def calculate_max_drawdown(trades: pd.DataFrame, *, date_col: str = 'close_date'
['high_value'].idxmax(), 'cumulative']
low_val = max_drawdown_df.loc[idxmin, 'cumulative']
max_drawdown_rel = 0.0
if high_val + starting_balance != 0:
max_drawdown_rel = (high_val - low_val) / (high_val + starting_balance)
if starting_balance != 0:
max_drawdown_rel = max_drawdown_df.loc[idxmin, 'drawdown_relative']
return (
abs(min(max_drawdown_df['drawdown'])),

45
freqtrade/optimize/hyperopt_loss_max_drawdown_relative.py Normal file
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@ -0,0 +1,45 @@
"""
MaxDrawDownRelativeHyperOptLoss
This module defines the alternative HyperOptLoss class which can be used for
Hyperoptimization.
"""
from datetime import datetime
from typing import Dict
from pandas import DataFrame
from freqtrade.data.btanalysis import calculate_underwater, calculate_max_drawdown
from freqtrade.optimize.hyperopt import IHyperOptLoss
class MaxDrawDownRelativeHyperOptLoss(IHyperOptLoss):
"""
Defines the loss function for hyperopt.
This implementation optimizes for max draw down and profit
Less max drawdown more profit -> Lower return value
"""
@staticmethod
def hyperopt_loss_function(results: DataFrame, config: Dict,
*args, **kwargs) -> float:
"""
Objective function.
Uses profit ratio weighted max_drawdown when drawdown is available.
Otherwise directly optimizes profit ratio.
"""
total_profit = results['profit_abs'].sum()
try:
drawdown_df = calculate_underwater(results, value_col='profit_abs', starting_balance=config['available_capital'])
max_drawdown = abs(min(drawdown_df['drawdown']))
relative_drawdown = max(drawdown_df['drawdown_relative'])
if max_drawdown == 0:
return -total_profit
return -total_profit / max_drawdown / relative_drawdown
except (Exception, ValueError):
return -total_profit

9
freqtrade/optimize/optimize_reports.py
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@ -474,9 +474,12 @@ def generate_strategy_stats(pairlist: List[str],
(drawdown_abs, drawdown_start, drawdown_end, high_val, low_val,
max_drawdown) = calculate_max_drawdown(
results, value_col='profit_abs', starting_balance=start_balance)
(_, _, _, _, _, max_relative_drawdown) = calculate_max_drawdown(
results, value_col='profit_abs', starting_balance=start_balance, relative=True)
strat_stats.update({
'max_drawdown': max_drawdown_legacy, # Deprecated - do not use
'max_drawdown_account': max_drawdown,
'max_relative_drawdown': max_relative_drawdown,
'max_drawdown_abs': drawdown_abs,
'drawdown_start': drawdown_start.strftime(DATETIME_PRINT_FORMAT),
'drawdown_start_ts': drawdown_start.timestamp() * 1000,
@ -497,6 +500,7 @@ def generate_strategy_stats(pairlist: List[str],
strat_stats.update({
'max_drawdown': 0.0,
'max_drawdown_account': 0.0,
'max_relative_drawdown': 0.0,
'max_drawdown_abs': 0.0,
'max_drawdown_low': 0.0,
'max_drawdown_high': 0.0,
@ -760,10 +764,11 @@ def text_table_add_metrics(strat_results: Dict) -> str:
strat_results['stake_currency'])),
# Compatibility to show old hyperopt results
('Drawdown (Account)', f"{strat_results['max_drawdown_account']:.2%}")
('Max % of account underwater', f"{strat_results['max_relative_drawdown']:.2%}"),
('Absolute Drawdown (Account)', f"{strat_results['max_drawdown_account']:.2%}")
if 'max_drawdown_account' in strat_results else (
'Drawdown', f"{strat_results['max_drawdown']:.2%}"),
('Drawdown', round_coin_value(strat_results['max_drawdown_abs'],
('Absolute Drawdown', round_coin_value(strat_results['max_drawdown_abs'],
strat_results['stake_currency'])),
('Drawdown high', round_coin_value(strat_results['max_drawdown_high'],
strat_results['stake_currency'])),