refactoring backslap (round one)

This commit is contained in:
misagh 2018-09-24 19:22:30 +02:00
parent e8716f16ad
commit 40d73de357
1 changed files with 52 additions and 318 deletions

View File

@ -1,42 +1,33 @@
# pragma pylint: disable=W0603
""" Edge positioning package """
import logging
import operator
import sys
from argparse import Namespace
from datetime import datetime, timedelta
from typing import Any, Dict, List, NamedTuple, Optional, Tuple
from typing import Any, Dict
import arrow
from pandas import DataFrame, to_datetime
from pandas import DataFrame
import pandas as pd
from tabulate import tabulate
import freqtrade.optimize as optimize
from freqtrade.optimize.backtesting import BacktestResult
from freqtrade import DependencyException, constants
from freqtrade.arguments import Arguments
from freqtrade.configuration import Configuration
from freqtrade.exchange import Exchange
from freqtrade.misc import file_dump_json
from freqtrade.persistence import Trade
from freqtrade.strategy.interface import SellType
from freqtrade.strategy.resolver import IStrategy, StrategyResolver
from freqtrade.optimize.backtesting import Backtesting
from collections import OrderedDict
import numpy as np
import timeit
import utils_find_1st as utf1st
from time import sleep
from pandas import set_option
import pdb
logger = logging.getLogger(__name__)
class Edge():
config: Dict = {}
def __init__(self, config: Dict[str, Any], exchange = None) -> None:
def __init__(self, config: Dict[str, Any], exchange=None) -> None:
"""
constructor
"""
@ -47,7 +38,7 @@ class Edge():
self.get_timeframe = Backtesting.get_timeframe
self.populate_buy_trend = self.strategy.populate_buy_trend
self.populate_sell_trend = self.strategy.populate_sell_trend
self.edge_config = self.config.get('edge', {})
self._last_updated = None
@ -103,7 +94,6 @@ class Edge():
self.stop_stops: int = 9999 # stop back testing any pair with this many stops, set to 999999 to not hit
def calculate(self) -> bool:
pairs = self.config['exchange']['pair_whitelist']
heartbeat = self.config['edge']['process_throttle_secs']
@ -115,9 +105,8 @@ class Edge():
logger.info('Using stake_currency: %s ...', self.config['stake_currency'])
logger.info('Using stake_amount: %s ...', self.config['stake_amount'])
logger.info('Using local backtesting data (using whitelist in given config) ...')
#TODO: add "timerange" to Edge config
timerange = Arguments.parse_timerange(None if self.config.get(
'timerange') is None else str(self.config.get('timerange')))
@ -133,7 +122,7 @@ class Edge():
if not data:
logger.critical("No data found. Edge is stopped ...")
return
preprocessed = self.tickerdata_to_dataframe(data)
# Print timeframe
@ -144,27 +133,17 @@ class Edge():
max_date.isoformat(),
(max_date - min_date).days
)
headers = ['date', 'buy', 'open', 'close', 'sell', 'high', 'low']
# Max open trades need not be considered in Edge positioning
max_open_trades = 0
realistic = False
stoploss_range_min = float(self.edge_config.get('stoploss_range_min', -0.01))
stoploss_range_max = float(self.edge_config.get('stoploss_range_max', -0.05))
stoploss_range_step = float(self.edge_config.get('stoploss_range_step', -0.001))
stoploss_range = np.arange(stoploss_range_min, stoploss_range_max, stoploss_range_step)
trades = []
trade_count_lock: Dict = {}
########################### Call out BSlap Loop instead of Original BT code
bslap_results: list = []
for pair, pair_data in preprocessed.items():
# Sorting dataframe by date and reset index
# Sorting dataframe by date and reset index
pair_data = pair_data.sort_values(by=['date'])
pair_data = pair_data.reset_index(drop=True)
@ -184,18 +163,17 @@ class Edge():
else:
bslap_results_df = []
bslap_results_df = DataFrame.from_records(bslap_results_df, columns=BacktestResult._fields)
self._cached_pairs = self._process_result(data, bslap_results_df, stoploss_range)
self._last_updated = arrow.utcnow().timestamp
return True
def sort_pairs(self, pairs) -> bool:
if len(self._cached_pairs) == 0:
self.calculate()
edge_sorted_pairs = [x[0] for x in self._cached_pairs]
return [x for _, x in sorted(zip(edge_sorted_pairs,pairs), key=lambda pair: pair[0])]
def vector_fill_results_table(self, bslap_results_df: DataFrame):
"""
The Results frame contains a number of columns that are calculable
@ -209,7 +187,6 @@ class Edge():
:param bslap_results Dataframe
:return: bslap_results Dataframe
"""
debug = self.debug_vector
# stake and fees
# stake = 0.015
@ -221,7 +198,6 @@ class Edge():
open_fee = fee / 2
close_fee = fee / 2
bslap_results_df['trade_duration'] = bslap_results_df['close_time'] - bslap_results_df['open_time']
bslap_results_df['trade_duration'] = bslap_results_df['trade_duration'].map(lambda x: int(x.total_seconds() / 60))
@ -242,7 +218,6 @@ class Edge():
# Absolute profit
bslap_results_df['profit_abs'] = bslap_results_df['sell_take'] - bslap_results_df['buy_spend']
return bslap_results_df
def np_get_t_open_ind(self, np_buy_arr, t_exit_ind: int, np_buy_arr_len: int, stop_stops: int,
@ -250,26 +225,12 @@ class Edge():
"""
The purpose of this def is to return the next "buy" = 1
after t_exit_ind.
This function will also check is the stop limit for the pair has been reached.
This function will also check is the stop limit for the pair has been reached.
if stop_stops is the limit and stop_stops_count it the number of times the stop has been hit.
t_exit_ind is the index the last trade exited on
or 0 if first time around this loop.
stop_stops i
"""
debug = self.debug
# Timers, to be called if in debug
def s():
st = timeit.default_timer()
return st
def f(st):
return (timeit.default_timer() - st)
st = s()
t_open_ind: int
"""
@ -290,17 +251,15 @@ class Edge():
if stop_stops_count >= stop_stops: # if maximum number of stops allowed in a pair is hit, exit loop
t_open_ind = -1 # -1 ends the loop
if debug:
print("Max stop limit ", stop_stops, "reached. Moving to next pair")
return t_open_ind
def _process_result(self, data: Dict[str, Dict], results: DataFrame, stoploss_range) -> str:
"""
This is a temporary version of edge positioning calculation.
The function will be eventually moved to a plugin called Edge in order to calculate necessary WR, RRR and
other indictaors related to money management periodically (each X minutes) and keep it in a storage.
The calulation will be done per pair and per strategy.
This is a temporary version of edge positioning calculation.
The function will be eventually moved to a plugin called Edge in order to calculate necessary WR, RRR and
other indictaors related to money management periodically (each X minutes) and keep it in a storage.
The calulation will be done per pair and per strategy.
"""
# Removing open trades from dataset
@ -312,8 +271,7 @@ class Edge():
results = results.groupby('pair').filter(lambda x: len(x) > min_trades_number)
###################################
# Removing outliers (Only Pumps) from the dataset
# Removing outliers (Only Pumps) from the dataset
# The method to detect outliers is to calculate standard deviation
# Then every value more than (standard deviation + 2*average) is out (pump)
#
@ -333,7 +291,6 @@ class Edge():
results = results[results.trade_duration < max_trade_duration]
#######################################################################
# Win Rate is the number of profitable trades
# Divided by number of trades
def winrate(x):
@ -354,7 +311,11 @@ class Edge():
x = (1/(x[x > 0].count()/x.count()) -1)
return x
##############################
def delta(x):
x = (abs(1/ ((x[x < 0].sum() / x[x < 0].count()) / (x[x > 0].sum() / x[x > 0].count())))) - (1/(x[x > 0].count()/x.count()) -1)
return x
# Expectancy
# Tells you the interest percentage you should hope
# E.x. if expectancy is 0.35, on $1 trade you should expect a target of $1.35
@ -365,47 +326,20 @@ class Edge():
x = ((1 + average_win/average_loss) * winrate) - 1
return x
##############################
final = results.groupby(['pair', 'stoploss'])['profit_abs'].\
agg([winrate, risk_reward_ratio, required_risk_reward, expectancy]).\
agg([winrate, risk_reward_ratio, required_risk_reward, expectancy, delta]).\
reset_index().sort_values(by=['expectancy', 'stoploss'], ascending=False)\
.groupby('pair').first().sort_values(by=['expectancy'], ascending=False)
# Returning an array of pairs in order of "expectancy"
return final.reset_index().values
def backslap_pair(self, ticker_data, pair, stoploss):
### backslap debug wrap
# debug_2loops = False # only loop twice, for faster debug
# debug_timing = False # print timing for each step
# debug = False # print values, to check accuracy
debug_2loops = self.debug_2loops # only loop twice, for faster debug
debug_timing = self.debug_timing # print timing for each step
debug = self.debug # print values, to check accuracy
# Read Stop Loss Values and Stake
#stop = self.stop_loss_value
stop = stoploss
p_stop = (stop + 1) # What stop really means, e.g 0.01 is 0.99 of price
if debug:
print("Stop is ", stop, "value from stragey file")
print("p_stop is", p_stop, "value used to multiply to entry price")
if debug:
set_option('display.max_rows', 5000)
set_option('display.max_columns', 8)
pd.set_option('display.width', 1000)
pd.set_option('max_colwidth', 40)
pd.set_option('precision', 12)
def s():
st = timeit.default_timer()
return st
def f(st):
return (timeit.default_timer() - st)
#### backslap config
'''
Numpy arrays are used for 100x speed up
@ -416,22 +350,12 @@ class Edge():
#######
# Use vars set at top of backtest
np_buy: int = self.np_buy
np_open: int = self.np_open
np_close: int = self.np_close
np_sell: int = self.np_sell
np_high: int = self.np_high
np_low: int = self.np_low
np_stop: int = self.np_stop
np_bto: int = self.np_bto # buys_triggered_on - should be close
np_bco: int = self.np_bco # buys calculated on - open of the next candle.
np_sto: int = self.np_sto # stops_triggered_on - Should be low, FT uses close
np_sco: int = self.np_sco # stops_calculated_on - Should be stop, FT uses close
### End Config
pair: str = pair
# ticker_data: DataFrame = ticker_dfs[t_file]
bslap: DataFrame = ticker_data
@ -457,23 +381,12 @@ class Edge():
stop_stops = self.stop_stops # Int of stops within a pair to stop trading a pair at
stop_stops_count = 0 # stop counter per pair
st = s() # Start timer for processing dataframe
if debug:
print('Processing:', pair)
# Results will be stored in a list of dicts
bslap_pair_results: list = []
bslap_result: dict = {}
while t_exit_ind < np_buy_arr_len:
loop = loop + 1
if debug or debug_timing:
print("-- T_exit_Ind - Numpy Index is", t_exit_ind, " ----------------------- Loop", loop, pair)
if debug_2loops:
if loop == 3:
print(
"++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++Loop debug max met - breaking")
break
'''
Dev phases
Phase 1
@ -481,7 +394,7 @@ class Edge():
a) Find first buy index
b) Discover first stop and sell hit after buy index
c) Chose first instance as trade exit
Phase 2
2) Manage dynamic Stop and ROI Exit
a) Create trade slice from 1
@ -489,72 +402,50 @@ class Edge():
c) search within trade slice for ROI hit
'''
if debug_timing:
st = s()
'''
0 - Find next buy entry
Finds index for first (buy = 1) flag
Requires: np_buy_arr - a 1D array of the 'buy' column. To find next "1"
Required: t_exit_ind - Either 0, first loop. Or The index we last exited on
Requires: np_buy_arr_len - length of pair array.
Requires: stops_stops - number of stops allowed before stop trading a pair
Requires: np_buy_arr_len - length of pair array.
Requires: stops_stops - number of stops allowed before stop trading a pair
Requires: stop_stop_counts - count of stops hit in the pair
Provides: The next "buy" index after t_exit_ind
If -1 is returned no buy has been found in remainder of array, skip to exit loop
'''
t_open_ind = self.np_get_t_open_ind(np_buy_arr, t_exit_ind, np_buy_arr_len, stop_stops, stop_stops_count)
if debug:
print("\n(0) numpy debug \nnp_get_t_open, has returned the next valid buy index as", t_open_ind)
print("If -1 there are no valid buys in the remainder of ticker data. Skipping to end of loop")
if debug_timing:
t_t = f(st)
print("0-numpy", str.format('{0:.17f}', t_t))
st = s()
if t_open_ind != -1:
"""
1 - Create views to search within for our open trade
The views are our search space for the next Stop or Sell
Numpy view is employed as:
1,000 faster than pandas searches
Pandas cannot assure it will always return a view, it may make a slow copy.
The view contains columns:
buy 0 - open 1 - close 2 - sell 3 - high 4 - low 5
Requires: np_bslap is our numpy array of the ticker DataFrame
Requires: t_open_ind is the index row with the buy.
Provides: np_t_open_v View of array after buy.
Provides: np_t_open_v_stop View of array after buy +1
Provides: np_t_open_v_stop View of array after buy +1
(Stop will search in here to prevent stopping in the past)
"""
np_t_open_v = np_bslap[t_open_ind:]
np_t_open_v_stop = np_bslap[t_open_ind + 1:]
if debug:
print("\n(1) numpy debug \nNumpy view row 0 is now Ticker_Data Index", t_open_ind)
print("Numpy View: Buy - Open - Close - Sell - High - Low")
print("Row 0", np_t_open_v[0])
print("Row 1", np_t_open_v[1], )
if debug_timing:
t_t = f(st)
print("2-numpy", str.format('{0:.17f}', t_t))
st = s()
'''
2 - Calculate our stop-loss price
As stop is based on buy price of our trade
- (BTO)Buys are Triggered On np_bto, typically the CLOSE of candle
- (BCO)Buys are Calculated On np_bco, default is OPEN of the next candle.
This is as we only see the CLOSE after it has happened.
The back test assumption is we have bought at first available price, the OPEN
Requires: np_bslap - is our numpy array of the ticker DataFrame
Requires: t_open_ind - is the index row with the first buy.
Requires: p_stop - is the stop rate, ie. 0.99 is -1%
@ -562,18 +453,11 @@ class Edge():
'''
np_t_stop_pri = (np_bslap[t_open_ind + 1, np_bco] * p_stop)
if debug:
print("\n(2) numpy debug\nStop-Loss has been calculated at:", np_t_stop_pri)
if debug_timing:
t_t = f(st)
print("2-numpy", str.format('{0:.17f}', t_t))
st = s()
'''
3 - Find candle STO is under Stop-Loss After Trade opened.
where [np_sto] (stop tiggered on variable: "close", "low" etc) < np_t_stop_pri
Requires: np_t_open_v_stop Numpy view of ticker_data after buy row +1 (when trade was opened)
Requires: np_sto User Var(STO)StopTriggeredOn. Typically set to "low" or "close"
Requires: np_t_stop_pri The stop-loss price STO must fall under to trigger stop
@ -586,26 +470,11 @@ class Edge():
# plus 1 as np_t_open_v_stop is 1 ahead of view np_t_open_v, used from here on out.
np_t_stop_ind = np_t_stop_ind + 1
if debug:
print("\n(3) numpy debug\nNext view index with STO (stop trigger on) under Stop-Loss is",
np_t_stop_ind - 1,
". STO is using field", np_sto,
"\nFrom key: buy 0 - open 1 - close 2 - sell 3 - high 4 - low 5\n")
print(
"If -1 or 0 returned there is no stop found to end of view, then next two array lines are garbage")
print("Row", np_t_stop_ind - 1, np_t_open_v[np_t_stop_ind])
print("Row", np_t_stop_ind, np_t_open_v[np_t_stop_ind + 1])
if debug_timing:
t_t = f(st)
print("3-numpy", str.format('{0:.17f}', t_t))
st = s()
'''
4 - Find first sell index after trade open
First index in the view np_t_open_v where ['sell'] = 1
Requires: np_t_open_v - view of ticker_data from buy onwards
Requires: no_sell - integer '3', the buy column in the array
Provides: np_t_sell_ind index of view where first sell=1 after buy
@ -617,26 +486,17 @@ class Edge():
np_t_sell_ind = utf1st.find_1st(np_t_open_v[:, np_sell],
1, utf1st.cmp_equal)
if debug:
print("\n(4) numpy debug\nNext view index with sell = 1 is ", np_t_sell_ind)
print("If 0 or less is returned there is no sell found to end of view, then next lines garbage")
print("Row", np_t_sell_ind, np_t_open_v[np_t_sell_ind])
print("Row", np_t_sell_ind + 1, np_t_open_v[np_t_sell_ind + 1])
if debug_timing:
t_t = f(st)
print("4-numpy", str.format('{0:.17f}', t_t))
st = s()
'''
5 - Determine which was hit first a stop or sell
To then use as exit index price-field (sell on buy, stop on stop)
STOP takes priority over SELL as would be 'in candle' from tick data
Sell would use Open from Next candle.
So in a draw Stop would be hit first on ticker data in live
Validity of when types of trades may be executed can be summarised as:
Tick View
index index Buy Sell open low close high Stop price
open 2am 94 -1 0 0 ----- ------ ------ ----- -----
@ -644,28 +504,26 @@ class Edge():
open 4am 96 1 0 1 Enter trgstop trg sel ROI out Stop out
open 5am 97 2 0 0 Exit ------ ------- ----- -----
open 6am 98 3 0 0 ----- ------ ------- ----- -----
-1 means not found till end of view i.e no valid Stop found. Exclude from match.
Stop tiggering and closing in 96-1, the candle we bought at OPEN in, is valid.
Buys and sells are triggered at candle close
Both will open their postions at the open of the next candle. i/e + 1 index
Stop and buy Indexes are on the view. To map to the ticker dataframe
the t_open_ind index should be summed.
np_t_stop_ind: Stop Found index in view
t_exit_ind : Sell found in view
t_open_ind : Where view was started on ticker_data
TODO: fix this frig for logic test,, case/switch/dictionary would be better...
more so when later testing many options, dynamic stop / roi etc
cludge - Setting np_t_sell_ind as 9999999999 when -1 (not found)
cludge - Setting np_t_stop_ind as 9999999999 when -1 (not found)
'''
if debug:
print("\n(5) numpy debug\nStop or Sell Logic Processing")
# cludge for logic test (-1) means it was not found, set crazy high to lose < test
np_t_sell_ind = 99999999 if np_t_sell_ind <= 0 else np_t_sell_ind
@ -676,9 +534,6 @@ class Edge():
t_exit_ind = t_open_ind + np_t_stop_ind # Set Exit row index
t_exit_type = SellType.STOP_LOSS # Set Exit type (stop)
np_t_exit_pri = np_sco # The price field our STOP exit will use
if debug:
print("Type STOP is first exit condition. "
"At view index:", np_t_stop_ind, ". Ticker data exit index is", t_exit_ind)
# Buy = 1 found before a stoploss triggered
elif np_t_sell_ind < 99999999 and np_t_sell_ind < np_t_stop_ind:
@ -687,104 +542,18 @@ class Edge():
t_exit_ind = t_open_ind + np_t_sell_ind # Set Exit row index
t_exit_type = SellType.SELL_SIGNAL # Set Exit type (sell)
np_t_exit_pri = np_open # The price field our SELL exit will use
if debug:
print("Type SELL is first exit condition. "
"At view index", np_t_sell_ind, ". Ticker data exit index is", t_exit_ind)
# No stop or buy left in view - set t_exit_last -1 to handle gracefully
else:
t_exit_last: int = -1 # Signal loop to exit, no buys or sells found.
t_exit_type = SellType.NONE
np_t_exit_pri = 999 # field price should be calculated on. 999 a non-existent column
if debug:
print("No valid STOP or SELL found. Signalling t_exit_last to gracefully exit")
# TODO: fix having to cludge/uncludge this ..
# Undo cludge
np_t_sell_ind = -1 if np_t_sell_ind == 99999999 else np_t_sell_ind
np_t_stop_ind = -1 if np_t_stop_ind == 99999999 else np_t_stop_ind
if debug_timing:
t_t = f(st)
print("5-logic", str.format('{0:.17f}', t_t))
st = s()
if debug:
'''
Print out the buys, stops, sells
Include Line before and after to for easy
Human verification
'''
# Combine the np_t_stop_pri value to bslap dataframe to make debug
# life easy. This is the current stop price based on buy price_
# This is slow but don't care about performance in debug
#
# When referencing equiv np_column, as example np_sto, its 5 in numpy and 6 in df, so +1
# as there is no data column in the numpy array.
bslap['np_stop_pri'] = np_t_stop_pri
# Buy
print("\n\nDATAFRAME DEBUG =================== BUY ", pair)
print("Numpy Array BUY Index is:", 0)
print("DataFrame BUY Index is:", t_open_ind, "displaying DF \n")
print("HINT, BUY trade should use OPEN price from next candle, i.e ", t_open_ind + 1)
op_is = t_open_ind - 1 # Print open index start, line before
op_if = t_open_ind + 3 # Print open index finish, line after
print(bslap.iloc[op_is:op_if], "\n")
# Stop - Stops trigger price np_sto (+1 for pandas column), and price received np_sco +1. (Stop Trigger|Calculated On)
if np_t_stop_ind < 0:
print("DATAFRAME DEBUG =================== STOP ", pair)
print("No STOPS were found until the end of ticker data file\n")
else:
print("DATAFRAME DEBUG =================== STOP ", pair)
print("Numpy Array STOP Index is:", np_t_stop_ind, "View starts at index", t_open_ind)
df_stop_index = (t_open_ind + np_t_stop_ind)
print("DataFrame STOP Index is:", df_stop_index, "displaying DF \n")
print("First Stoploss trigger after Trade entered at OPEN in candle", t_open_ind + 1, "is ",
df_stop_index, ": \n",
str.format('{0:.17f}', bslap.iloc[df_stop_index][np_sto + 1]),
"is less than", str.format('{0:.17f}', np_t_stop_pri))
print("A stoploss exit will be calculated at rate:",
str.format('{0:.17f}', bslap.iloc[df_stop_index][np_sco + 1]))
print("\nHINT, STOPs should exit in-candle, i.e", df_stop_index,
": As live STOPs are not linked to O-C times")
st_is = df_stop_index - 1 # Print stop index start, line before
st_if = df_stop_index + 2 # Print stop index finish, line after
print(bslap.iloc[st_is:st_if], "\n")
# Sell
if np_t_sell_ind < 0:
print("DATAFRAME DEBUG =================== SELL ", pair)
print("No SELLS were found till the end of ticker data file\n")
else:
print("DATAFRAME DEBUG =================== SELL ", pair)
print("Numpy View SELL Index is:", np_t_sell_ind, "View starts at index", t_open_ind)
df_sell_index = (t_open_ind + np_t_sell_ind)
print("DataFrame SELL Index is:", df_sell_index, "displaying DF \n")
print("First Sell Index after Trade open is in candle", df_sell_index)
print("HINT, if exit is SELL (not stop) trade should use OPEN price from next candle",
df_sell_index + 1)
sl_is = df_sell_index - 1 # Print sell index start, line before
sl_if = df_sell_index + 3 # Print sell index finish, line after
print(bslap.iloc[sl_is:sl_if], "\n")
# Chosen Exit (stop or sell)
print("DATAFRAME DEBUG =================== EXIT ", pair)
print("Exit type is :", t_exit_type)
print("trade exit price field is", np_t_exit_pri, "\n")
if debug_timing:
t_t = f(st)
print("6-depra", str.format('{0:.17f}', t_t))
st = s()
## use numpy view "np_t_open_v" for speed. Columns are
# buy 0 - open 1 - close 2 - sell 3 - high 4 - low 5
# exception is 6 which is use the stop value.
@ -804,43 +573,19 @@ class Edge():
if t_exit_type == SellType.NONE:
np_trade_exit_price = 0
if debug_timing:
t_t = f(st)
print("7-numpy", str.format('{0:.17f}', t_t))
st = s()
if debug:
print("//////////////////////////////////////////////")
print("+++++++++++++++++++++++++++++++++ Trade Enter ")
print("np_trade Enter Price is ", str.format('{0:.17f}', np_trade_enter_price))
print("--------------------------------- Trade Exit ")
print("Trade Exit Type is ", t_exit_type)
print("np_trade Exit Price is", str.format('{0:.17f}', np_trade_exit_price))
print("//////////////////////////////////////////////")
else: # no buys were found, step 0 returned -1
# Gracefully exit the loop
t_exit_last == -1
if debug:
print("\n(E) No buys were found in remaining ticker file. Exiting", pair)
# Loop control - catch no closed trades.
if debug:
print("---------------------------------------- end of loop", loop,
" Dataframe Exit Index is: ", t_exit_ind)
print("Exit Index Last, Exit Index Now Are: ", t_exit_last, t_exit_ind)
if t_exit_last >= t_exit_ind or t_exit_last == -1:
"""
Break loop and go on to next pair.
When last trade exit equals index of last exit, there is no
opportunity to close any more trades.
"""
# TODO :add handing here to record none closed open trades
if debug:
print(bslap_pair_results)
break
else:
"""
@ -880,10 +625,6 @@ class Edge():
if t_exit_type is SellType.STOP_LOSS:
stop_stops_count = stop_stops_count + 1
if debug:
print("The trade dict is: \n", bslap_result)
print("Trades dicts in list after append are: \n ", bslap_pair_results)
"""
Loop back to start. t_exit_last becomes where loop
will seek to open new trades from.
@ -891,23 +632,16 @@ class Edge():
"""
t_exit_last = t_exit_ind + 1
if debug_timing:
t_t = f(st)
print("8+trade", str.format('{0:.17f}', t_t))
# Send back List of trade dicts
return bslap_pair_results
def stake_amount(self, pair: str) -> str:
info = [x for x in self._cached_pairs if x[0] == pair][0]
stoploss = info[1]
allowed_capital_at_risk = round(self._total_capital * self._allowed_risk, 5)
position_size = abs(round((allowed_capital_at_risk / stoploss), 5))
return position_size
return (allowed_dollars_at_risk / symbol_strategy_stop_loss)
def stoploss(self, pair: str) -> float:
info = [x for x in self._cached_pairs if x[0] == pair][0]
return info[1]