stable/tests/freqai/test_models/ReinforcementLearner_test_3ac.py
2022-12-16 22:31:44 +03:00

66 lines
2.4 KiB
Python

import logging
import numpy as np
from freqtrade.freqai.prediction_models.ReinforcementLearner import ReinforcementLearner
from freqtrade.freqai.RL.Base3ActionRLEnv import Actions, Base3ActionRLEnv, Positions
logger = logging.getLogger(__name__)
class ReinforcementLearner_test_3ac(ReinforcementLearner):
"""
User created Reinforcement Learning Model prediction model.
"""
class MyRLEnv(Base3ActionRLEnv):
"""
User can override any function in BaseRLEnv and gym.Env. Here the user
sets a custom reward based on profit and trade duration.
"""
def calculate_reward(self, action: int) -> float:
# first, penalize if the action is not valid
if not self._is_valid(action):
return -2
pnl = self.get_unrealized_profit()
rew = np.sign(pnl) * (pnl + 1)
factor = 100.
# reward agent for entering trades
if (action in (Actions.Buy.value, Actions.Sell.value)
and self._position == Positions.Neutral):
return 25
# discourage agent from not entering trades
if action == Actions.Neutral.value and self._position == Positions.Neutral:
return -1
max_trade_duration = self.rl_config.get('max_trade_duration_candles', 300)
trade_duration = self._current_tick - self._last_trade_tick # type: ignore
if trade_duration <= max_trade_duration:
factor *= 1.5
elif trade_duration > max_trade_duration:
factor *= 0.5
# discourage sitting in position
if self._position in (Positions.Short, Positions.Long) and (
action == Actions.Neutral.value
or (action == Actions.Sell.value and self._position == Positions.Short)
or (action == Actions.Buy.value and self._position == Positions.Long)
):
return -1 * trade_duration / max_trade_duration
# close position
if (action == Actions.Buy.value and self._position == Positions.Short) or (
action == Actions.Sell.value and self._position == Positions.Long
):
if pnl > self.profit_aim * self.rr:
factor *= self.rl_config["model_reward_parameters"].get("win_reward_factor", 2)
return float(rew * factor)
return 0.