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AttributeError: module 'backtrader.indicators' has no attribute 'DummyInd'
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Hi guys, need a little help
I tested building a custom indicator with the help of the Backtrader documentation and I got an AttributeError. I am new to Backtrader and I'd appreciate a little help.
Code```import backtrader as bt import backtrader.indicators as btind class DummyInd(bt.Indicator): lines = ('dummyline',) params = (('value', 5),) def __init__(self): self.lines.dummyline = bt.Max(0.0, self.params.value) class MyStrategy(bt.Strategy): def __init__(self): self.rocp = btind.DummyInd() def next(self): print(self.rocp) cerebro = bt.Cerebro() # create a "Cerebro" engine instance # Create a data feed data = bt.feeds.YahooFinanceData(dataname='sunpharma.csv') cerebro.adddata(data) # Add the data feed cerebro.addstrategy(MyStrategy) # Add the trading strategy print('Starting Portfolio Value: ',cerebro.broker.getvalue()) cerebro.run() # run it all print('Final Portfolio Value: ',cerebro.broker.getvalue()) cerebro.plot() # and plot it with a single command
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Since it is unknown where the actual error happened, than a guess - try this
self.rocp = DummyInd()
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@ab_trader Thank you for taking the time to reply.
But I didn't get what was wrong exactly. I made the change and the error is gone. -
btind.some_indicator()
tries to get an indicator frombt
library. Evidently there is noDummyInd()
indicator there, it is developed in your code.