2018-09-24 17:22:30 +00:00
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# pragma pylint: disable=W0603
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""" Edge positioning package """
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2018-09-21 15:41:31 +00:00
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import logging
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2018-12-15 12:55:16 +00:00
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from pathlib import Path
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2018-11-21 23:04:20 +00:00
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from typing import Any, Dict, NamedTuple
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2018-09-23 02:51:53 +00:00
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2018-12-15 12:55:16 +00:00
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import arrow
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2018-09-27 10:23:46 +00:00
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import numpy as np
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import utils_find_1st as utf1st
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2018-09-24 17:22:30 +00:00
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from pandas import DataFrame
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2018-09-21 15:41:31 +00:00
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2018-11-26 20:06:32 +00:00
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from freqtrade import constants, OperationalException
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2019-08-14 08:07:32 +00:00
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from freqtrade.configuration import TimeRange
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2018-12-13 05:34:10 +00:00
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from freqtrade.data import history
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2018-09-21 15:41:31 +00:00
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from freqtrade.strategy.interface import SellType
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2018-11-07 23:22:46 +00:00
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2018-09-23 02:51:53 +00:00
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2018-09-21 15:41:31 +00:00
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logger = logging.getLogger(__name__)
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2018-09-24 17:22:30 +00:00
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2018-11-21 23:04:20 +00:00
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class PairInfo(NamedTuple):
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stoploss: float
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winrate: float
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risk_reward_ratio: float
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required_risk_reward: float
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expectancy: float
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nb_trades: int
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avg_trade_duration: float
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2019-09-12 09:13:20 +00:00
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class Edge:
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2018-11-06 18:16:20 +00:00
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"""
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Calculates Win Rate, Risk Reward Ratio, Expectancy
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against historical data for a give set of markets and a strategy
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it then adjusts stoploss and position size accordingly
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and force it into the strategy
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Author: https://github.com/mishaker
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"""
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2018-09-21 15:41:31 +00:00
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config: Dict = {}
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2018-11-04 17:11:58 +00:00
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_cached_pairs: Dict[str, Any] = {} # Keeps a list of pairs
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2018-09-21 15:41:31 +00:00
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2018-11-14 11:53:20 +00:00
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def __init__(self, config: Dict[str, Any], exchange, strategy) -> None:
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2018-11-04 17:11:58 +00:00
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2018-09-21 15:41:31 +00:00
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self.config = config
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2018-10-01 15:29:33 +00:00
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self.exchange = exchange
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2018-11-07 23:22:46 +00:00
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self.strategy = strategy
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2018-09-24 17:22:30 +00:00
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2018-09-21 19:46:18 +00:00
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self.edge_config = self.config.get('edge', {})
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2018-11-04 17:11:58 +00:00
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self._cached_pairs: Dict[str, Any] = {} # Keeps a list of pairs
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2018-12-01 09:56:33 +00:00
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self._final_pairs: list = []
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2018-11-04 17:11:58 +00:00
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2018-11-26 20:06:32 +00:00
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# checking max_open_trades. it should be -1 as with Edge
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# the number of trades is determined by position size
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2019-01-06 12:48:27 +00:00
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if self.config['max_open_trades'] != float('inf'):
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2018-11-26 20:06:32 +00:00
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logger.critical('max_open_trades should be -1 in config !')
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if self.config['stake_amount'] != constants.UNLIMITED_STAKE_AMOUNT:
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raise OperationalException('Edge works only with unlimited stake amount')
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self._capital_percentage: float = self.edge_config.get('capital_available_percentage')
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2018-11-04 17:11:58 +00:00
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self._allowed_risk: float = self.edge_config.get('allowed_risk')
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self._since_number_of_days: int = self.edge_config.get('calculate_since_number_of_days', 14)
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self._last_updated: int = 0 # Timestamp of pairs last updated time
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2018-11-14 11:53:20 +00:00
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self._refresh_pairs = True
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2018-11-04 17:11:58 +00:00
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2018-11-06 18:16:20 +00:00
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self._stoploss_range_min = float(self.edge_config.get('stoploss_range_min', -0.01))
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self._stoploss_range_max = float(self.edge_config.get('stoploss_range_max', -0.05))
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self._stoploss_range_step = float(self.edge_config.get('stoploss_range_step', -0.001))
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# calculating stoploss range
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self._stoploss_range = np.arange(
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self._stoploss_range_min,
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self._stoploss_range_max,
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self._stoploss_range_step
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)
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2019-08-14 08:07:32 +00:00
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self._timerange: TimeRange = TimeRange.parse_timerange("%s-" % arrow.now().shift(
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2018-10-25 14:57:49 +00:00
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days=-1 * self._since_number_of_days).format('YYYYMMDD'))
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2019-10-05 13:29:00 +00:00
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if config.get('fee'):
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self.fee = config['fee']
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else:
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2019-12-14 11:52:33 +00:00
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self.fee = self.exchange.get_fee(symbol=self.config['exchange']['pair_whitelist'][0])
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2018-09-21 15:41:31 +00:00
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def calculate(self) -> bool:
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pairs = self.config['exchange']['pair_whitelist']
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2018-10-01 15:29:33 +00:00
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heartbeat = self.edge_config.get('process_throttle_secs')
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2018-09-21 15:41:31 +00:00
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2018-10-02 09:49:49 +00:00
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if (self._last_updated > 0) and (
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2018-09-27 10:23:46 +00:00
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self._last_updated + heartbeat > arrow.utcnow().timestamp):
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2018-09-21 15:41:31 +00:00
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return False
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2018-09-26 14:03:51 +00:00
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data: Dict[str, Any] = {}
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2018-09-21 15:41:31 +00:00
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logger.info('Using stake_currency: %s ...', self.config['stake_currency'])
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logger.info('Using local backtesting data (using whitelist in given config) ...')
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2019-12-17 10:43:42 +00:00
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if self._refresh_pairs:
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history.refresh_data(
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2019-12-23 18:32:31 +00:00
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datadir=self.config['datadir'],
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2019-12-17 10:43:42 +00:00
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pairs=pairs,
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exchange=self.exchange,
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timeframe=self.strategy.ticker_interval,
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timerange=self._timerange,
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)
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2018-12-13 05:34:10 +00:00
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data = history.load_data(
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2019-12-23 18:32:31 +00:00
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datadir=self.config['datadir'],
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2018-09-21 15:41:31 +00:00
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pairs=pairs,
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2019-11-02 19:19:13 +00:00
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timeframe=self.strategy.ticker_interval,
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2019-10-27 09:18:58 +00:00
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timerange=self._timerange,
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startup_candles=self.strategy.startup_candle_count,
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2018-09-21 15:41:31 +00:00
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)
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if not data:
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2018-11-07 18:24:53 +00:00
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# Reinitializing cached pairs
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self._cached_pairs = {}
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2018-09-21 15:41:31 +00:00
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logger.critical("No data found. Edge is stopped ...")
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2018-09-26 14:03:51 +00:00
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return False
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2018-09-24 17:22:30 +00:00
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2019-06-09 23:08:54 +00:00
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preprocessed = self.strategy.tickerdata_to_dataframe(data)
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2018-09-21 15:41:31 +00:00
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# Print timeframe
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2019-12-17 22:06:03 +00:00
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min_date, max_date = history.get_timerange(preprocessed)
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2018-09-21 15:41:31 +00:00
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logger.info(
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'Measuring data from %s up to %s (%s days) ...',
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min_date.isoformat(),
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max_date.isoformat(),
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(max_date - min_date).days
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)
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headers = ['date', 'buy', 'open', 'close', 'sell', 'high', 'low']
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2018-09-26 13:20:53 +00:00
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trades: list = []
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2018-09-21 15:41:31 +00:00
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for pair, pair_data in preprocessed.items():
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2018-09-24 17:22:30 +00:00
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# Sorting dataframe by date and reset index
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2018-09-21 15:41:31 +00:00
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pair_data = pair_data.sort_values(by=['date'])
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pair_data = pair_data.reset_index(drop=True)
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2018-09-26 15:09:20 +00:00
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2019-06-09 23:08:54 +00:00
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ticker_data = self.strategy.advise_sell(
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self.strategy.advise_buy(pair_data, {'pair': pair}), {'pair': pair})[headers].copy()
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2018-09-21 15:41:31 +00:00
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2018-11-06 18:16:20 +00:00
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trades += self._find_trades_for_stoploss_range(ticker_data, pair, self._stoploss_range)
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2018-09-21 15:41:31 +00:00
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2018-10-05 15:06:17 +00:00
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# If no trade found then exit
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if len(trades) == 0:
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2019-05-22 14:19:11 +00:00
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logger.info("No trades found.")
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2018-10-05 15:06:17 +00:00
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return False
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2018-09-24 17:22:30 +00:00
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2018-10-05 15:06:17 +00:00
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# Fill missing, calculable columns, profit, duration , abs etc.
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trades_df = self._fill_calculable_fields(DataFrame(trades))
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2018-09-26 13:20:53 +00:00
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self._cached_pairs = self._process_expectancy(trades_df)
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2018-09-21 15:41:31 +00:00
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self._last_updated = arrow.utcnow().timestamp
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2018-09-28 12:19:22 +00:00
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2018-09-21 15:41:31 +00:00
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return True
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2018-09-24 17:22:30 +00:00
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2018-12-04 16:05:35 +00:00
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def stake_amount(self, pair: str, free_capital: float,
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total_capital: float, capital_in_trade: float) -> float:
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2018-12-01 10:48:41 +00:00
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stoploss = self.stoploss(pair)
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2018-12-04 16:05:35 +00:00
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available_capital = (total_capital + capital_in_trade) * self._capital_percentage
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2018-12-01 10:00:33 +00:00
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allowed_capital_at_risk = available_capital * self._allowed_risk
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max_position_size = abs(allowed_capital_at_risk / stoploss)
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2018-11-28 14:36:32 +00:00
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position_size = min(max_position_size, free_capital)
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2018-12-01 10:48:41 +00:00
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if pair in self._cached_pairs:
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logger.info(
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'winrate: %s, expectancy: %s, position size: %s, pair: %s,'
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2018-12-04 16:05:35 +00:00
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' capital in trade: %s, free capital: %s, total capital: %s,'
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2018-12-01 10:48:41 +00:00
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' stoploss: %s, available capital: %s.',
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self._cached_pairs[pair].winrate,
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self._cached_pairs[pair].expectancy,
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2018-12-04 16:05:35 +00:00
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position_size, pair,
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capital_in_trade, free_capital, total_capital,
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stoploss, available_capital
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2018-12-01 10:48:41 +00:00
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)
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2018-12-01 10:00:33 +00:00
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return round(position_size, 15)
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2018-09-26 13:20:53 +00:00
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def stoploss(self, pair: str) -> float:
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2018-11-29 17:31:08 +00:00
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if pair in self._cached_pairs:
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return self._cached_pairs[pair].stoploss
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else:
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logger.warning('tried to access stoploss of a non-existing pair, '
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'strategy stoploss is returned instead.')
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return self.strategy.stoploss
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2018-09-26 13:20:53 +00:00
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2018-11-07 18:03:08 +00:00
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def adjust(self, pairs) -> list:
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"""
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Filters out and sorts "pairs" according to Edge calculated pairs
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"""
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2018-11-04 17:11:58 +00:00
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final = []
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for pair, info in self._cached_pairs.items():
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if info.expectancy > float(self.edge_config.get('minimum_expectancy', 0.2)) and \
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info.winrate > float(self.edge_config.get('minimum_winrate', 0.60)) and \
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pair in pairs:
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2018-11-04 17:43:57 +00:00
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final.append(pair)
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2018-11-04 17:11:58 +00:00
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2018-12-01 09:56:33 +00:00
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if self._final_pairs != final:
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self._final_pairs = final
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if self._final_pairs:
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2019-01-30 10:23:23 +00:00
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logger.info(
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'Minimum expectancy and minimum winrate are met only for %s,'
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' so other pairs are filtered out.',
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self._final_pairs
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)
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2018-11-28 19:04:56 +00:00
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else:
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2019-01-30 10:23:23 +00:00
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logger.info(
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'Edge removed all pairs as no pair with minimum expectancy '
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'and minimum winrate was found !'
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)
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2018-10-03 12:22:27 +00:00
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2018-12-01 09:56:33 +00:00
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return self._final_pairs
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2018-09-24 17:22:30 +00:00
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2019-04-03 12:03:28 +00:00
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def accepted_pairs(self) -> list:
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"""
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return a list of accepted pairs along with their winrate, expectancy and stoploss
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"""
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final = []
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for pair, info in self._cached_pairs.items():
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if info.expectancy > float(self.edge_config.get('minimum_expectancy', 0.2)) and \
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2019-04-03 12:14:47 +00:00
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info.winrate > float(self.edge_config.get('minimum_winrate', 0.60)):
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2019-04-03 12:31:00 +00:00
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final.append({
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'Pair': pair,
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'Winrate': info.winrate,
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'Expectancy': info.expectancy,
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'Stoploss': info.stoploss,
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})
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2019-04-03 12:03:28 +00:00
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return final
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2018-10-02 09:55:14 +00:00
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def _fill_calculable_fields(self, result: DataFrame) -> DataFrame:
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2018-09-21 15:41:31 +00:00
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"""
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2018-09-26 13:20:53 +00:00
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The result frame contains a number of columns that are calculable
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2018-10-02 09:53:59 +00:00
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from other columns. These are left blank till all rows are added,
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2018-09-21 15:41:31 +00:00
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to be populated in single vector calls.
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Columns to be populated are:
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- Profit
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- trade duration
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- profit abs
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2018-09-26 13:20:53 +00:00
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:param result Dataframe
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:return: result Dataframe
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2018-09-21 15:41:31 +00:00
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"""
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# stake and fees
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# stake = 0.015
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# 0.05% is 0.0005
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# fee = 0.001
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2018-12-01 12:02:45 +00:00
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# we set stake amount to an arbitrary amount.
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2018-12-01 12:01:51 +00:00
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# as it doesn't change the calculation.
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# all returned values are relative. they are percentages.
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2018-11-27 13:02:34 +00:00
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stake = 0.015
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2018-12-01 12:01:51 +00:00
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fee = self.fee
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2018-09-21 15:41:31 +00:00
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open_fee = fee / 2
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close_fee = fee / 2
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2018-09-26 13:20:53 +00:00
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result['trade_duration'] = result['close_time'] - result['open_time']
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2018-09-21 15:41:31 +00:00
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2018-09-27 10:23:46 +00:00
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result['trade_duration'] = result['trade_duration'].map(
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lambda x: int(x.total_seconds() / 60))
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2018-09-26 14:50:17 +00:00
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# Spends, Takes, Profit, Absolute Profit
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2018-09-26 13:20:53 +00:00
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2018-09-21 15:41:31 +00:00
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# Buy Price
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2018-09-26 13:20:53 +00:00
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result['buy_vol'] = stake / result['open_rate'] # How many target are we buying
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result['buy_fee'] = stake * open_fee
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result['buy_spend'] = stake + result['buy_fee'] # How much we're spending
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2018-09-21 15:41:31 +00:00
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# Sell price
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2018-09-26 13:20:53 +00:00
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result['sell_sum'] = result['buy_vol'] * result['close_rate']
|
|
|
|
result['sell_fee'] = result['sell_sum'] * close_fee
|
|
|
|
result['sell_take'] = result['sell_sum'] - result['sell_fee']
|
|
|
|
|
2018-09-21 15:41:31 +00:00
|
|
|
# profit_percent
|
2018-09-27 10:23:46 +00:00
|
|
|
result['profit_percent'] = (result['sell_take'] - result['buy_spend']) / result['buy_spend']
|
2018-09-26 14:50:17 +00:00
|
|
|
|
2018-09-21 15:41:31 +00:00
|
|
|
# Absolute profit
|
2018-09-26 13:20:53 +00:00
|
|
|
result['profit_abs'] = result['sell_take'] - result['buy_spend']
|
2018-09-21 15:41:31 +00:00
|
|
|
|
2018-09-26 13:20:53 +00:00
|
|
|
return result
|
2018-09-21 15:41:31 +00:00
|
|
|
|
2018-11-04 17:11:58 +00:00
|
|
|
def _process_expectancy(self, results: DataFrame) -> Dict[str, Any]:
|
2018-09-21 15:41:31 +00:00
|
|
|
"""
|
2018-11-02 17:07:38 +00:00
|
|
|
This calculates WinRate, Required Risk Reward, Risk Reward and Expectancy of all pairs
|
2018-09-24 17:22:30 +00:00
|
|
|
The calulation will be done per pair and per strategy.
|
2018-09-21 15:41:31 +00:00
|
|
|
"""
|
|
|
|
# Removing pairs having less than min_trades_number
|
2018-11-02 17:07:38 +00:00
|
|
|
min_trades_number = self.edge_config.get('min_trade_number', 10)
|
2018-10-12 17:37:23 +00:00
|
|
|
results = results.groupby(['pair', 'stoploss']).filter(lambda x: len(x) > min_trades_number)
|
2018-09-21 15:41:31 +00:00
|
|
|
###################################
|
|
|
|
|
2018-09-24 17:22:30 +00:00
|
|
|
# Removing outliers (Only Pumps) from the dataset
|
2018-09-21 15:41:31 +00:00
|
|
|
# The method to detect outliers is to calculate standard deviation
|
|
|
|
# Then every value more than (standard deviation + 2*average) is out (pump)
|
|
|
|
#
|
|
|
|
# Removing Pumps
|
2018-11-06 18:05:42 +00:00
|
|
|
if self.edge_config.get('remove_pumps', False):
|
2018-10-12 17:37:23 +00:00
|
|
|
results = results.groupby(['pair', 'stoploss']).apply(
|
|
|
|
lambda x: x[x['profit_abs'] < 2 * x['profit_abs'].std() + x['profit_abs'].mean()])
|
2018-09-21 15:41:31 +00:00
|
|
|
##########################################################################
|
|
|
|
|
|
|
|
# Removing trades having a duration more than X minutes (set in config)
|
2018-09-21 19:46:18 +00:00
|
|
|
max_trade_duration = self.edge_config.get('max_trade_duration_minute', 1440)
|
2018-09-21 15:41:31 +00:00
|
|
|
results = results[results.trade_duration < max_trade_duration]
|
|
|
|
#######################################################################
|
|
|
|
|
2018-10-18 09:09:10 +00:00
|
|
|
if results.empty:
|
2018-11-04 17:11:58 +00:00
|
|
|
return {}
|
2018-10-18 09:09:10 +00:00
|
|
|
|
2018-10-25 14:57:49 +00:00
|
|
|
groupby_aggregator = {
|
|
|
|
'profit_abs': [
|
2018-11-02 17:07:38 +00:00
|
|
|
('nb_trades', 'count'), # number of all trades
|
|
|
|
('profit_sum', lambda x: x[x > 0].sum()), # cumulative profit of all winning trades
|
|
|
|
('loss_sum', lambda x: abs(x[x < 0].sum())), # cumulative loss of all losing trades
|
|
|
|
('nb_win_trades', lambda x: x[x > 0].count()) # number of winning trades
|
|
|
|
],
|
|
|
|
'trade_duration': [('avg_trade_duration', 'mean')]
|
|
|
|
}
|
|
|
|
|
2018-11-06 18:05:42 +00:00
|
|
|
# Group by (pair and stoploss) by applying above aggregator
|
2018-11-02 17:07:38 +00:00
|
|
|
df = results.groupby(['pair', 'stoploss'])['profit_abs', 'trade_duration'].agg(
|
2018-10-25 14:57:49 +00:00
|
|
|
groupby_aggregator).reset_index(col_level=1)
|
|
|
|
|
2018-11-02 17:07:38 +00:00
|
|
|
# Dropping level 0 as we don't need it
|
|
|
|
df.columns = df.columns.droplevel(0)
|
|
|
|
|
|
|
|
# Calculating number of losing trades, average win and average loss
|
|
|
|
df['nb_loss_trades'] = df['nb_trades'] - df['nb_win_trades']
|
|
|
|
df['average_win'] = df['profit_sum'] / df['nb_win_trades']
|
|
|
|
df['average_loss'] = df['loss_sum'] / df['nb_loss_trades']
|
|
|
|
|
|
|
|
# Win rate = number of profitable trades / number of trades
|
|
|
|
df['winrate'] = df['nb_win_trades'] / df['nb_trades']
|
|
|
|
|
2018-11-06 18:05:42 +00:00
|
|
|
# risk_reward_ratio = average win / average loss
|
|
|
|
df['risk_reward_ratio'] = df['average_win'] / df['average_loss']
|
2018-11-02 17:07:38 +00:00
|
|
|
|
|
|
|
# required_risk_reward = (1 / winrate) - 1
|
|
|
|
df['required_risk_reward'] = (1 / df['winrate']) - 1
|
|
|
|
|
2018-11-06 18:05:42 +00:00
|
|
|
# expectancy = (risk_reward_ratio * winrate) - (lossrate)
|
|
|
|
df['expectancy'] = (df['risk_reward_ratio'] * df['winrate']) - (1 - df['winrate'])
|
2018-11-02 17:07:38 +00:00
|
|
|
|
|
|
|
# sort by expectancy and stoploss
|
|
|
|
df = df.sort_values(by=['expectancy', 'stoploss'], ascending=False).groupby(
|
2018-10-18 09:09:10 +00:00
|
|
|
'pair').first().sort_values(by=['expectancy'], ascending=False).reset_index()
|
|
|
|
|
2018-11-04 17:11:58 +00:00
|
|
|
final = {}
|
|
|
|
for x in df.itertuples():
|
2018-11-21 23:04:20 +00:00
|
|
|
final[x.pair] = PairInfo(
|
|
|
|
x.stoploss,
|
|
|
|
x.winrate,
|
|
|
|
x.risk_reward_ratio,
|
|
|
|
x.required_risk_reward,
|
|
|
|
x.expectancy,
|
|
|
|
x.nb_trades,
|
|
|
|
x.avg_trade_duration
|
|
|
|
)
|
2018-09-24 17:22:30 +00:00
|
|
|
|
2018-11-04 17:11:58 +00:00
|
|
|
# Returning a list of pairs in order of "expectancy"
|
|
|
|
return final
|
2018-09-21 15:41:31 +00:00
|
|
|
|
2018-09-26 13:20:53 +00:00
|
|
|
def _find_trades_for_stoploss_range(self, ticker_data, pair, stoploss_range):
|
|
|
|
buy_column = ticker_data['buy'].values
|
|
|
|
sell_column = ticker_data['sell'].values
|
|
|
|
date_column = ticker_data['date'].values
|
|
|
|
ohlc_columns = ticker_data[['open', 'high', 'low', 'close']].values
|
2018-09-26 14:50:17 +00:00
|
|
|
|
2018-09-26 13:20:53 +00:00
|
|
|
result: list = []
|
|
|
|
for stoploss in stoploss_range:
|
2018-10-03 12:22:27 +00:00
|
|
|
result += self._detect_next_stop_or_sell_point(
|
2018-09-26 14:50:17 +00:00
|
|
|
buy_column, sell_column, date_column, ohlc_columns, round(stoploss, 6), pair
|
2018-09-27 10:23:46 +00:00
|
|
|
)
|
2018-09-26 13:20:53 +00:00
|
|
|
|
|
|
|
return result
|
|
|
|
|
2018-11-07 18:00:18 +00:00
|
|
|
def _detect_next_stop_or_sell_point(self, buy_column, sell_column, date_column,
|
2019-02-27 03:07:16 +00:00
|
|
|
ohlc_columns, stoploss, pair):
|
2018-11-07 18:00:18 +00:00
|
|
|
"""
|
2019-02-27 10:35:06 +00:00
|
|
|
Iterate through ohlc_columns in order to find the next trade
|
2018-11-07 18:00:18 +00:00
|
|
|
Next trade opens from the first buy signal noticed to
|
|
|
|
The sell or stoploss signal after it.
|
2019-02-27 10:35:06 +00:00
|
|
|
It then cuts OHLC, buy_column, sell_column and date_column.
|
|
|
|
Cut from (the exit trade index) + 1.
|
|
|
|
|
2018-11-07 18:00:18 +00:00
|
|
|
Author: https://github.com/mishaker
|
|
|
|
"""
|
2018-09-26 14:50:17 +00:00
|
|
|
|
2018-09-26 13:20:53 +00:00
|
|
|
result: list = []
|
2019-02-27 03:07:16 +00:00
|
|
|
start_point = 0
|
2018-09-26 13:20:53 +00:00
|
|
|
|
2019-02-27 03:07:16 +00:00
|
|
|
while True:
|
|
|
|
open_trade_index = utf1st.find_1st(buy_column, 1, utf1st.cmp_equal)
|
|
|
|
|
2019-02-27 10:35:06 +00:00
|
|
|
# Return empty if we don't find trade entry (i.e. buy==1) or
|
|
|
|
# we find a buy but at the end of array
|
2019-02-27 03:07:16 +00:00
|
|
|
if open_trade_index == -1 or open_trade_index == len(buy_column) - 1:
|
|
|
|
break
|
|
|
|
else:
|
2019-02-27 10:35:06 +00:00
|
|
|
# When a buy signal is seen,
|
2019-02-27 03:07:16 +00:00
|
|
|
# trade opens in reality on the next candle
|
2019-02-27 10:35:06 +00:00
|
|
|
open_trade_index += 1
|
2019-02-27 03:07:16 +00:00
|
|
|
|
|
|
|
stop_price_percentage = stoploss + 1
|
|
|
|
open_price = ohlc_columns[open_trade_index, 0]
|
|
|
|
stop_price = (open_price * stop_price_percentage)
|
|
|
|
|
|
|
|
# Searching for the index where stoploss is hit
|
|
|
|
stop_index = utf1st.find_1st(
|
|
|
|
ohlc_columns[open_trade_index:, 2], stop_price, utf1st.cmp_smaller)
|
|
|
|
|
|
|
|
# If we don't find it then we assume stop_index will be far in future (infinite number)
|
|
|
|
if stop_index == -1:
|
|
|
|
stop_index = float('inf')
|
|
|
|
|
|
|
|
# Searching for the index where sell is hit
|
|
|
|
sell_index = utf1st.find_1st(sell_column[open_trade_index:], 1, utf1st.cmp_equal)
|
|
|
|
|
|
|
|
# If we don't find it then we assume sell_index will be far in future (infinite number)
|
|
|
|
if sell_index == -1:
|
|
|
|
sell_index = float('inf')
|
|
|
|
|
|
|
|
# Check if we don't find any stop or sell point (in that case trade remains open)
|
|
|
|
# It is not interesting for Edge to consider it so we simply ignore the trade
|
|
|
|
# And stop iterating there is no more entry
|
|
|
|
if stop_index == sell_index == float('inf'):
|
|
|
|
break
|
|
|
|
|
|
|
|
if stop_index <= sell_index:
|
|
|
|
exit_index = open_trade_index + stop_index
|
|
|
|
exit_type = SellType.STOP_LOSS
|
|
|
|
exit_price = stop_price
|
|
|
|
elif stop_index > sell_index:
|
2019-02-27 10:35:06 +00:00
|
|
|
# If exit is SELL then we exit at the next candle
|
2019-02-27 03:07:16 +00:00
|
|
|
exit_index = open_trade_index + sell_index + 1
|
|
|
|
|
2019-02-27 10:35:06 +00:00
|
|
|
# Check if we have the next candle
|
2019-02-27 03:07:16 +00:00
|
|
|
if len(ohlc_columns) - 1 < exit_index:
|
|
|
|
break
|
|
|
|
|
|
|
|
exit_type = SellType.SELL_SIGNAL
|
|
|
|
exit_price = ohlc_columns[exit_index, 0]
|
|
|
|
|
|
|
|
trade = {'pair': pair,
|
|
|
|
'stoploss': stoploss,
|
|
|
|
'profit_percent': '',
|
|
|
|
'profit_abs': '',
|
|
|
|
'open_time': date_column[open_trade_index],
|
|
|
|
'close_time': date_column[exit_index],
|
|
|
|
'open_index': start_point + open_trade_index,
|
|
|
|
'close_index': start_point + exit_index,
|
|
|
|
'trade_duration': '',
|
|
|
|
'open_rate': round(open_price, 15),
|
|
|
|
'close_rate': round(exit_price, 15),
|
|
|
|
'exit_type': exit_type
|
|
|
|
}
|
|
|
|
|
|
|
|
result.append(trade)
|
|
|
|
|
2019-02-27 10:35:06 +00:00
|
|
|
# Giving a view of exit_index till the end of array
|
2019-02-27 03:07:16 +00:00
|
|
|
buy_column = buy_column[exit_index:]
|
|
|
|
sell_column = sell_column[exit_index:]
|
|
|
|
date_column = date_column[exit_index:]
|
|
|
|
ohlc_columns = ohlc_columns[exit_index:]
|
|
|
|
start_point += exit_index
|
|
|
|
|
|
|
|
return result
|