@backtrader If you were wondering where I got the EMA indicators from, you mention SMA throughout the Quickstart guide and on your Github home page, so I figured switching to EMA was available. As for the RSI, it is present in your Indicator Reference, found here.
Regardless, I have remedied the issue by just using my own RSI function. Thanks for the help.
Hello all,
I keep receiving an error and looking at the trace, it seems to all stem from when I decide to use the RSI indicator.
# === Create a Strategy ===
class AmazingCrossover(bt.Strategy):
def log(self, txt, dt=None):
'''Logging function for this strategy'''
dt = dt or self.datas[0].datetime.date(0)
print('%s, %s' % (dt.isoformat(), txt))
def __init__(self):
# # Create indicators
# fast_ema = bt.ind.ExponentialMovingAverage(period = 5)
# slow_ema = bt.ind.ExponentialMovingAverage(period = 10)
# rsi = bt.ind.RSI(period = 10)
# To keep track of pending orders and buy price/commission
self.order = None
self.buyprice = None
self.buycomm = None
def notify_order(self, order):
if order.status in [order.Submitted, order.Accepted]:
# Buy/Sell order submitted/accepted to/by broker - Nothing to do
return
# Check if an order has been completed
# Attention: broker could reject order if not enough cash
if order.status in [order.Completed]:
if order.isbuy():
self.log(
'BUY EXECUTED, Price: %.2f, Cost: %.2f, Comm %.2f' %
(order.executed.price,
order.executed.value,
order.executed.comm))
self.buyprice = order.executed.price
self.buycomm = order.executed.comm
else: # Sell
self.log('SELL EXECUTED, Price: %.2f, Cost: %.2f, Comm %.2f' %
(order.executed.price,
order.executed.value,
order.executed.comm))
self.bar_executed = len(self)
elif order.status in [order.Canceled, order.Margin, order.Rejected]:
self.log('Order Canceled/Margin/Rejected')
self.order = None
def notify_trade(self, trade):
if not trade.isclosed:
return
self.log('OPERATION PROFIT, GROSS %.2f, NET %.2f' % (trade.pnl, trade.pnlcomm))
def next(self):
fast_ema = bt.ind.ExponentialMovingAverage(period = 5)
slow_ema = bt.ind.ExponentialMovingAverage(period = 10)
rsi = bt.ind.RSI(period = 10)
# Check if an order is pending ... if yes, we cannot send a 2nd one
if self.order:
return
# Check if we are in the market
if not self.position:
# Buy Condition
if fast_ema > slow_ema:
if rsi > 50:
self.log('BUY CREATE, %.2f' % self.dataclose[0])
# Keep track of the created order to avoid a 2nd order
self.order = self.buy()
else:
# Already in the market ... we might sell
if fast_ema < slow_ema:
if rsi < 50:
# SELL, SELL, SELL!!! (with all possible default parameters)
self.log('SELL CREATE, %.2f' % self.dataclose[0])
# Keep track of the created order to avoid a 2nd order
self.order = self.sell()
if __name__ == '__main__':
# Create a Cerebro identity
cerebro = bt.Cerebro()
# Add the Strategy
cerebro.addstrategy(AmazingCrossover)
# Create a data feed
data = bt.feeds.GenericCSVData(
dataname='USDT_BTC.csv',
fromdate=datetime.datetime(2018, 1, 1),
todate=datetime.datetime(2018, 12, 31),
nullvalue=0.0,
datetime=0,
high=2,
low=3,
open=4,
close=1,
volume=6,
openinterest=-1
)
# Add the data to Cerebro
cerebro.adddata(data)
# Set our desired cash start
cerebro.broker.setcash(10000.0)
# Set the commission
cerebro.broker.setcommission(commission = 0.002)
# Get starting value
print('Starting Portfolio Value: %.2f' % cerebro.broker.getvalue())
# Run over everything
cerebro.run()
# Get final value
print('Final Portfolio Value: %.2f' % cerebro.broker.getvalue())
Here is the error trace.
Traceback (most recent call last):
File "/Users/developer/PycharmProject/AmazingCrossover/AmazingCrossover.py", line 141, in <module>
cerebro.run()
File "/Users/developer/PycharmProject/AmazingCrossover/venv/lib/python3.7/site-packages/backtrader/cerebro.py", line 1127, in run
runstrat = self.runstrategies(iterstrat)
File "/Users/developer/PycharmProject/AmazingCrossover/venv/lib/python3.7/site-packages/backtrader/cerebro.py", line 1293, in runstrategies
self._runonce(runstrats)
File "/Users/developer/PycharmProject/AmazingCrossover/venv/lib/python3.7/site-packages/backtrader/cerebro.py", line 1695, in _runonce
strat._oncepost(dt0)
File "/Users/developer/PycharmProject/AmazingCrossover/venv/lib/python3.7/site-packages/backtrader/strategy.py", line 311, in _oncepost
self.nextstart() # only called for the 1st value
File "/Users/developer/PycharmProject/AmazingCrossover/venv/lib/python3.7/site-packages/backtrader/lineiterator.py", line 347, in nextstart
self.next()
File "/Users/developer/PycharmProject/AmazingCrossover/AmazingCrossover.py", line 81, in next
rsi = bt.ind.RSI(period = 10)
File "/Users/developer/PycharmProject/AmazingCrossover/venv/lib/python3.7/site-packages/backtrader/indicator.py", line 53, in __call__
return super(MetaIndicator, cls).__call__(*args, **kwargs)
File "/Users/developer/PycharmProject/AmazingCrossover/venv/lib/python3.7/site-packages/backtrader/metabase.py", line 88, in __call__
_obj, args, kwargs = cls.doinit(_obj, *args, **kwargs)
File "/Users/developer/PycharmProject/AmazingCrossover/venv/lib/python3.7/site-packages/backtrader/metabase.py", line 78, in doinit
_obj.__init__(*args, **kwargs)
File "/Users/developer/PycharmProject/AmazingCrossover/venv/lib/python3.7/site-packages/backtrader/indicators/rsi.py", line 179, in __init__
upday = UpDay(self.data, period=self.p.lookback)
File "/Users/developer/PycharmProject/AmazingCrossover/venv/lib/python3.7/site-packages/backtrader/indicator.py", line 53, in __call__
return super(MetaIndicator, cls).__call__(*args, **kwargs)
File "/Users/developer/PycharmProject/AmazingCrossover/venv/lib/python3.7/site-packages/backtrader/metabase.py", line 88, in __call__
_obj, args, kwargs = cls.doinit(_obj, *args, **kwargs)
File "/Users/developer/PycharmProject/AmazingCrossover/venv/lib/python3.7/site-packages/backtrader/metabase.py", line 78, in doinit
_obj.__init__(*args, **kwargs)
File "/Users/developer/PycharmProject/AmazingCrossover/venv/lib/python3.7/site-packages/backtrader/indicators/rsi.py", line 46, in __init__
self.lines.upday = Max(self.data - self.data(-self.p.period), 0.0)
File "/Users/developer/PycharmProject/AmazingCrossover/venv/lib/python3.7/site-packages/backtrader/lineroot.py", line 227, in __sub__
return self._operation(other, operator.__sub__)
File "/Users/developer/PycharmProject/AmazingCrossover/venv/lib/python3.7/site-packages/backtrader/lineroot.py", line 88, in _operation
return self._operation_stage2(other, operation, r=r)
File "/Users/developer/PycharmProject/AmazingCrossover/venv/lib/python3.7/site-packages/backtrader/lineroot.py", line 209, in _operation_stage2
other = other[0]
File "/Users/developer/PycharmProject/AmazingCrossover/venv/lib/python3.7/site-packages/backtrader/linebuffer.py", line 163, in __getitem__
return self.array[self.idx + ago]
IndexError: array index out of range
What am I missing here? I think I am missing something with the arguments of RSI but after looking at the docs I am not sure.
Any help would be appreciated. Thanks.
Whenever I try to add my own generic CSV data to my code, I get an error:
Starting Portfolio Value: 10000.00
Traceback (most recent call last):
File "<ipython-input-17-d193ded4a7a8>", line 1, in <module>
runfile('/Users/developer/SleeplessCrossover/Sleeplessv1.1.py', wdir='/Users/developer/SleeplessCrossover')
File "/anaconda3/lib/python3.7/site-packages/spyder_kernels/customize/spydercustomize.py", line 786, in runfile
execfile(filename, namespace)
File "/anaconda3/lib/python3.7/site-packages/spyder_kernels/customize/spydercustomize.py", line 110, in execfile
exec(compile(f.read(), filename, 'exec'), namespace)
File "/Users/developer/SleeplessCrossover/Sleeplessv1.1.py", line 93, in <module>
cerebro.run()
File "/anaconda3/lib/python3.7/site-packages/backtrader/cerebro.py", line 1127, in run
runstrat = self.runstrategies(iterstrat)
File "/anaconda3/lib/python3.7/site-packages/backtrader/cerebro.py", line 1217, in runstrategies
strat = stratcls(*sargs, **skwargs)
TypeError: 'str' object is not callable
If you guys want to see my strategy, here it is:
# Create Cerebro instance
if __name__ == '__main__':
# Create a Cerebro identity
cerebro = bt.Cerebro()
# Add a strategy to cerebro
cerebro.addstrategy('SleeplessCrossover')
data = btfeeds.GenericCSVData(
dataname='BTCUSDT.csv',
fromdate=dt.datetime(2019, 3, 23),
todate=dt.datetime(2019, 4, 12),
nullvalue=0.0,
datetime=0,
high=2,
low=3,
open=1,
close=4,
volume=5,
openinterest=-1
)
print('Starting Portfolio Value: %.2f' % cerebro.broker.getvalue())
cerebro.adddata(data)
cerebro.run()
print('Final Portfolio Value: %.2f' % cerebro.broker.getvalue())
Edit: I finally found the issue. It wasn't importing the data, it was me adding a strategy as a string that caused the issue. What I don't understand is, when the cerebro.addstrategy() function does not have a string as an argument I get an error saying there's no variable called SleeplessCrossover.