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Partial exit using average price (#6545)

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Introduce Partial exits
This commit is contained in:
Kavinkumar
2022-07-31 17:49:04 +05:30
committed by GitHub
parent 369c6da5d8
commit a4bada3ebe
20 changed files with 1462 additions and 347 deletions
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115
freqtrade/optimize/backtesting.py Executable file → Normal file
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@@ -287,8 +287,8 @@ class Backtesting:
if unavailable_pairs:
raise OperationalException(
f"Pairs {', '.join(unavailable_pairs)} got no leverage tiers available. "
"It is therefore impossible to backtest with this pair at the moment.")
f"Pairs {', '.join(unavailable_pairs)} got no leverage tiers available. "
"It is therefore impossible to backtest with this pair at the moment.")
else:
self.futures_data = {}
@@ -503,16 +503,20 @@ class Backtesting:
def _get_adjust_trade_entry_for_candle(self, trade: LocalTrade, row: Tuple
) -> LocalTrade:
current_profit = trade.calc_profit_ratio(row[OPEN_IDX])
min_stake = self.exchange.get_min_pair_stake_amount(trade.pair, row[OPEN_IDX], -0.1)
max_stake = self.exchange.get_max_pair_stake_amount(trade.pair, row[OPEN_IDX])
current_rate = row[OPEN_IDX]
current_date = row[DATE_IDX].to_pydatetime()
current_profit = trade.calc_profit_ratio(current_rate)
min_stake = self.exchange.get_min_pair_stake_amount(trade.pair, current_rate, -0.1)
max_stake = self.exchange.get_max_pair_stake_amount(trade.pair, current_rate)
stake_available = self.wallets.get_available_stake_amount()
stake_amount = strategy_safe_wrapper(self.strategy.adjust_trade_position,
default_retval=None)(
trade=trade, # type: ignore[arg-type]
current_time=row[DATE_IDX].to_pydatetime(), current_rate=row[OPEN_IDX],
current_time=current_date, current_rate=current_rate,
current_profit=current_profit, min_stake=min_stake,
max_stake=min(max_stake, stake_available))
max_stake=min(max_stake, stake_available),
current_entry_rate=current_rate, current_exit_rate=current_rate,
current_entry_profit=current_profit, current_exit_profit=current_profit)
# Check if we should increase our position
if stake_amount is not None and stake_amount > 0.0:
@@ -523,6 +527,24 @@ class Backtesting:
self.wallets.update()
return pos_trade
if stake_amount is not None and stake_amount < 0.0:
amount = abs(stake_amount) / current_rate
if amount > trade.amount:
# This is currently ineffective as remaining would become < min tradable
amount = trade.amount
remaining = (trade.amount - amount) * current_rate
if remaining < min_stake:
# Remaining stake is too low to be sold.
return trade
pos_trade = self._exit_trade(trade, row, current_rate, amount)
if pos_trade is not None:
order = pos_trade.orders[-1]
if self._get_order_filled(order.price, row):
order.close_bt_order(current_date, trade)
trade.recalc_trade_from_orders()
self.wallets.update()
return pos_trade
return trade
def _get_order_filled(self, rate: float, row: Tuple) -> bool:
@@ -602,7 +624,7 @@ class Backtesting:
self.strategy.confirm_trade_exit, default_retval=True)(
pair=trade.pair,
trade=trade, # type: ignore[arg-type]
order_type='limit',
order_type=order_type,
amount=trade.amount,
rate=close_rate,
time_in_force=time_in_force,
@@ -613,32 +635,38 @@ class Backtesting:
trade.exit_reason = exit_reason
self.order_id_counter += 1
order = Order(
id=self.order_id_counter,
ft_trade_id=trade.id,
order_date=exit_candle_time,
order_update_date=exit_candle_time,
ft_is_open=True,
ft_pair=trade.pair,
order_id=str(self.order_id_counter),
symbol=trade.pair,
ft_order_side=trade.exit_side,
side=trade.exit_side,
order_type=order_type,
status="open",
price=close_rate,
average=close_rate,
amount=trade.amount,
filled=0,
remaining=trade.amount,
cost=trade.amount * close_rate,
)
trade.orders.append(order)
return trade
return self._exit_trade(trade, row, close_rate, trade.amount)
return None
def _exit_trade(self, trade: LocalTrade, sell_row: Tuple,
close_rate: float, amount: float = None) -> Optional[LocalTrade]:
self.order_id_counter += 1
exit_candle_time = sell_row[DATE_IDX].to_pydatetime()
order_type = self.strategy.order_types['exit']
amount = amount or trade.amount
order = Order(
id=self.order_id_counter,
ft_trade_id=trade.id,
order_date=exit_candle_time,
order_update_date=exit_candle_time,
ft_is_open=True,
ft_pair=trade.pair,
order_id=str(self.order_id_counter),
symbol=trade.pair,
ft_order_side=trade.exit_side,
side=trade.exit_side,
order_type=order_type,
status="open",
price=close_rate,
average=close_rate,
amount=amount,
filled=0,
remaining=amount,
cost=amount * close_rate,
)
trade.orders.append(order)
return trade
def _get_exit_trade_entry(self, trade: LocalTrade, row: Tuple) -> Optional[LocalTrade]:
exit_candle_time: datetime = row[DATE_IDX].to_pydatetime()
@@ -865,6 +893,8 @@ class Backtesting:
# Ignore trade if entry-order did not fill yet
continue
exit_row = data[pair][-1]
self._exit_trade(trade, exit_row, exit_row[OPEN_IDX], trade.amount)
trade.orders[-1].close_bt_order(exit_row[DATE_IDX].to_pydatetime(), trade)
trade.close_date = exit_row[DATE_IDX].to_pydatetime()
trade.exit_reason = ExitType.FORCE_EXIT.value
@@ -1006,7 +1036,7 @@ class Backtesting:
return None
return row
def backtest(self, processed: Dict,
def backtest(self, processed: Dict, # noqa: max-complexity: 13
start_date: datetime, end_date: datetime,
max_open_trades: int = 0, position_stacking: bool = False,
enable_protections: bool = False) -> Dict[str, Any]:
@@ -1108,14 +1138,19 @@ class Backtesting:
if order and self._get_order_filled(order.price, row):
order.close_bt_order(current_time, trade)
trade.open_order_id = None
trade.close_date = current_time
trade.close(order.price, show_msg=False)
sub_trade = order.safe_amount_after_fee != trade.amount
if sub_trade:
order.close_bt_order(current_time, trade)
trade.recalc_trade_from_orders()
else:
trade.close_date = current_time
trade.close(order.price, show_msg=False)
# logger.debug(f"{pair} - Backtesting exit {trade}")
open_trade_count -= 1
open_trades[pair].remove(trade)
LocalTrade.close_bt_trade(trade)
trades.append(trade)
# logger.debug(f"{pair} - Backtesting exit {trade}")
open_trade_count -= 1
open_trades[pair].remove(trade)
LocalTrade.close_bt_trade(trade)
trades.append(trade)
self.wallets.update()
self.run_protections(
enable_protections, pair, current_time, trade.trade_direction)