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Merge pull request #6260 from stash86/pos_adjust 

Add max_buy_position_adjustment as attribute
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Matthias 2022-01-27 20:13:51 +01:00 committed by GitHub
parent 18168cba7a 002226f5fd
commit 82e193d9f0
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11 changed files with 85 additions and 21 deletions
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2
docs/configuration.md
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@ -173,6 +173,7 @@ Mandatory parameters are marked as **Required**, which means that they are requi
| `dataformat_ohlcv` | Data format to use to store historical candle (OHLCV) data. <br> *Defaults to `json`*. <br> **Datatype:** String
| `dataformat_trades` | Data format to use to store historical trades data. <br> *Defaults to `jsongz`*. <br> **Datatype:** String
| `position_adjustment_enable` | Enables the strategy to use position adjustments (additional buys or sells). [More information here](strategy-callbacks.md#adjust-trade-position). <br> [Strategy Override](#parameters-in-the-strategy). <br>*Defaults to `false`.*<br> **Datatype:** Boolean
| `max_entry_position_adjustment` | Maximum additional buy(s) for each open trade on top of the first entry Order. Set it to `-1` for unlimited additional additional orders. [More information here](strategy-callbacks.md#adjust-trade-position). <br> [Strategy Override](#parameters-in-the-strategy). <br>*Defaults to `-1`.*<br> **Datatype:** Positive Integer or -1
### Parameters in the strategy
@ -198,6 +199,7 @@ Values set in the configuration file always overwrite values set in the strategy
* `ignore_roi_if_buy_signal`
* `ignore_buying_expired_candle_after`
* `position_adjustment_enable`
* `max_entry_position_adjustment`
### Configuring amount per trade

26
docs/strategy-callbacks.md
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@ -579,11 +579,13 @@ The `position_adjustment_enable` strategy property enables the usage of `adjust_
For performance reasons, it's disabled by default and freqtrade will show a warning message on startup if enabled.
`adjust_trade_position()` can be used to perform additional orders, for example to manage risk with DCA (Dollar Cost Averaging).
`max_entry_position_adjustment` property is used to limit the number of additional buys per trade (on top of the first buy) that the bot can execute. By default, the value is -1 which means the bot have no limit on number of adjustment buys.
The strategy is expected to return a stake_amount (in stake currency) between `min_stake` and `max_stake` if and when an additional buy order should be made (position is increased).
If there are not enough funds in the wallet (the return value is above `max_stake`) then the signal will be ignored.
Additional orders also result in additional fees and those orders don't count towards `max_open_trades`.
This callback is **not** called when there is an open order (either buy or sell) waiting for execution.
This callback is **not** called when there is an open order (either buy or sell) waiting for execution, or when you have reached the maximum amount of extra buys that you have set on `max_entry_position_adjustment`.
`adjust_trade_position()` is called very frequently for the duration of a trade, so you must keep your implementation as performant as possible.
!!! Note "About stake size"
@ -614,7 +616,7 @@ class DigDeeperStrategy(IStrategy):
# ... populate_* methods
# Example specific variables
max_dca_orders = 3
max_entry_position_adjustment = 3
# This number is explained a bit further down
max_dca_multiplier = 5.5
@ -656,8 +658,7 @@ class DigDeeperStrategy(IStrategy):
return None
filled_buys = trade.select_filled_orders('buy')
count_of_buys = len(filled_buys)
count_of_buys = trade.nr_of_successful_buys
# Allow up to 3 additional increasingly larger buys (4 in total)
# Initial buy is 1x
# If that falls to -5% profit, we buy 1.25x more, average profit should increase to roughly -2.2%
@ -666,15 +667,14 @@ class DigDeeperStrategy(IStrategy):
# Total stake for this trade would be 1 + 1.25 + 1.5 + 1.75 = 5.5x of the initial allowed stake.
# That is why max_dca_multiplier is 5.5
# Hope you have a deep wallet!
if 0 < count_of_buys <= self.max_dca_orders:
try:
# This returns first order stake size
stake_amount = filled_buys[0].cost
# This then calculates current safety order size
stake_amount = stake_amount * (1 + (count_of_buys * 0.25))
return stake_amount
except Exception as exception:
return None
try:
# This returns first order stake size
stake_amount = filled_buys[0].cost
# This then calculates current safety order size
stake_amount = stake_amount * (1 + (count_of_buys * 0.25))
return stake_amount
except Exception as exception:
return None
return None

4
freqtrade/constants.py
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@ -371,7 +371,9 @@ CONF_SCHEMA = {
'type': 'string',
'enum': AVAILABLE_DATAHANDLERS,
'default': 'jsongz'
}
},
'position_adjustment_enable': {'type': 'boolean', 'default': False},
'max_entry_position_adjustment': {'type': ['integer', 'number'], 'minimum': -1},
},
'definitions': {
'exchange': {

11
freqtrade/freqtradebot.py
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@ -462,8 +462,8 @@ class FreqtradeBot(LoggingMixin):
try:
self.check_and_call_adjust_trade_position(trade)
except DependencyException as exception:
logger.warning('Unable to adjust position of trade for %s: %s',
trade.pair, exception)
logger.warning(
f"Unable to adjust position of trade for {trade.pair}: {exception}")
def check_and_call_adjust_trade_position(self, trade: Trade):
"""
@ -471,6 +471,13 @@ class FreqtradeBot(LoggingMixin):
If the strategy triggers the adjustment, a new order gets issued.
Once that completes, the existing trade is modified to match new data.
"""
if self.strategy.max_entry_position_adjustment > -1:
count_of_buys = trade.nr_of_successful_buys
if count_of_buys > self.strategy.max_entry_position_adjustment:
logger.debug(f"Max adjustment entries for {trade.pair} has been reached.")
return
else:
logger.debug("Max adjustment entries is set to unlimited.")
current_rate = self.exchange.get_rate(trade.pair, refresh=True, side="buy")
current_profit = trade.calc_profit_ratio(current_rate)

7
freqtrade/optimize/backtesting.py
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@ -381,7 +381,12 @@ class Backtesting:
# Check if we need to adjust our current positions
if self.strategy.position_adjustment_enable:
trade = self._get_adjust_trade_entry_for_candle(trade, sell_row)
check_adjust_buy = True
if self.strategy.max_entry_position_adjustment > -1:
count_of_buys = trade.nr_of_successful_buys
check_adjust_buy = (count_of_buys <= self.strategy.max_entry_position_adjustment)
if check_adjust_buy:
trade = self._get_adjust_trade_entry_for_candle(trade, sell_row)
sell_candle_time = sell_row[DATE_IDX].to_pydatetime()
sell = self.strategy.should_sell(trade, sell_row[OPEN_IDX], # type: ignore

3
freqtrade/resolvers/strategy_resolver.py
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@ -97,7 +97,8 @@ class StrategyResolver(IResolver):
("sell_profit_offset", 0.0),
("disable_dataframe_checks", False),
("ignore_buying_expired_candle_after", 0),
("position_adjustment_enable", False)
("position_adjustment_enable", False),
("max_entry_position_adjustment", -1),
]
for attribute, default in attributes:
StrategyResolver._override_attribute_helper(strategy, config,

2
freqtrade/rpc/api_server/api_schemas.py
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@ -173,6 +173,8 @@ class ShowConfig(BaseModel):
bot_name: str
state: str
runmode: str
position_adjustment_enable: bool
max_entry_position_adjustment: int
class TradeSchema(BaseModel):

12
freqtrade/rpc/rpc.py
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@ -136,7 +136,12 @@ class RPC:
'ask_strategy': config.get('ask_strategy', {}),
'bid_strategy': config.get('bid_strategy', {}),
'state': str(botstate),
'runmode': config['runmode'].value
'runmode': config['runmode'].value,
'position_adjustment_enable': config.get('position_adjustment_enable', False),
'max_entry_position_adjustment': (
config['max_entry_position_adjustment']
if config['max_entry_position_adjustment'] != float('inf')
else -1)
}
return val
@ -247,8 +252,9 @@ class RPC:
profit_str
]
if self._config.get('position_adjustment_enable', False):
filled_buys = trade.select_filled_orders('buy')
detail_trade.append(str(len(filled_buys)))
max_buy = self._config['max_entry_position_adjustment'] + 1
filled_buys = trade.nr_of_successful_buys
detail_trade.append(f"{filled_buys}/{max_buy}")
trades_list.append(detail_trade)
profitcol = "Profit"
if self._fiat_converter:

9
freqtrade/rpc/telegram.py
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@ -1347,6 +1347,14 @@ class Telegram(RPCHandler):
else:
sl_info = f"*Stoploss:* `{val['stoploss']}`\n"
if val['position_adjustment_enable']:
pa_info = (
f"*Position adjustment:* On\n"
f"*Max enter position adjustment:* `{val['max_entry_position_adjustment']}`\n"
)
else:
pa_info = "*Position adjustment:* Off\n"
self._send_msg(
f"*Mode:* `{'Dry-run' if val['dry_run'] else 'Live'}`\n"
f"*Exchange:* `{val['exchange']}`\n"
@ -1356,6 +1364,7 @@ class Telegram(RPCHandler):
f"*Ask strategy:* ```\n{json.dumps(val['ask_strategy'])}```\n"
f"*Bid strategy:* ```\n{json.dumps(val['bid_strategy'])}```\n"
f"{sl_info}"
f"{pa_info}"
f"*Timeframe:* `{val['timeframe']}`\n"
f"*Strategy:* `{val['strategy']}`\n"
f"*Current state:* `{val['state']}`"

1
freqtrade/strategy/interface.py
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@ -108,6 +108,7 @@ class IStrategy(ABC, HyperStrategyMixin):
# Position adjustment is disabled by default
position_adjustment_enable: bool = False
max_entry_position_adjustment: int = -1
# Number of seconds after which the candle will no longer result in a buy on expired candles
ignore_buying_expired_candle_after: int = 0

29
tests/test_freqtradebot.py
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@ -4550,3 +4550,32 @@ def test_position_adjust(mocker, default_conf_usdt, fee) -> None:
# Make sure the closed order is found as the second order.
order = trade.select_order('buy', False)
assert order.order_id == '652'
def test_process_open_trade_positions_exception(mocker, default_conf_usdt, fee, caplog) -> None:
default_conf_usdt.update({
"position_adjustment_enable": True,
})
freqtrade = get_patched_freqtradebot(mocker, default_conf_usdt)
mocker.patch('freqtrade.freqtradebot.FreqtradeBot.check_and_call_adjust_trade_position',
side_effect=DependencyException())
create_mock_trades(fee)
freqtrade.process_open_trade_positions()
assert log_has_re(r"Unable to adjust position of trade for .*", caplog)
def test_check_and_call_adjust_trade_position(mocker, default_conf_usdt, fee, caplog) -> None:
default_conf_usdt.update({
"position_adjustment_enable": True,
"max_entry_position_adjustment": 0,
})
freqtrade = get_patched_freqtradebot(mocker, default_conf_usdt)
create_mock_trades(fee)
caplog.set_level(logging.DEBUG)
freqtrade.process_open_trade_positions()
assert log_has_re(r"Max adjustment entries for .* has been reached\.", caplog)