For code/output blocks: Use ``` (aka backtick or grave accent) in a single line before and after the block. See: http://commonmark.org/help/
Cerebro.run() error
-
I am new to backtrader and have been using the Quickstart guide. Although, I can never get the Cerebro.run() function to work, I always get the error message as shown in the attached image(https://imgur.com/a/ykvDlpq). I directly copied and pasted the quick starter code, so I do not know why I keep getting this message. Here is my code:
unicode_literals) import datetime # For datetime objects import os.path # To manage paths import sys # To find out the script name (in argv[0]) # Import the backtrader platform import backtrader as bt # Create a Stratey class TestStrategy(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): self.dataclose = self.datas[0].close def next(self): # Simply log the closing price of the series from the reference self.log('Close, %.2f' % self.dataclose[0]) if self.dataclose[0] < self.dataclose[-1]: # current close less than previous close if self.dataclose[-1] < self.dataclose[-2]: # previous close less than the previous close # BUY, BUY, BUY!!! (with all possible default parameters) self.log('BUY CREATE, %.2f' % self.dataclose[0]) self.buy() if __name__ == '__main__': # Create a cerebro entity cerebro = bt.Cerebro() # Add a strategy cerebro.addstrategy(TestStrategy) # Datas are in a subfolder of the samples. Need to find where the script is # because it could have been called from anywhere datapath = os.path.join('../data/raw/demo/orcl-1995-2014.txt') # Create a Data Feed data = bt.feeds.YahooFinanceCSVData( dataname=datapath, # Do not pass values before this date fromdate=datetime.datetime(2000, 1, 1), # Do not pass values before this date todate=datetime.datetime(2000, 12, 31), # Do not pass values after this date reverse=False) # Add the Data Feed to Cerebro cerebro.adddata(data) # Set our desired cash start cerebro.broker.setcash(100000.0) # Print out the starting conditions print('Starting Portfolio Value: %.2f' % cerebro.broker.getvalue()) # Run over everything bt.Cerebro().run() # Print out the final result print('Final Portfolio Value: %.2f' % cerebro.broker.getvalue()) from __future__ import (absolute_import, division, print_function, unicode_literals) import datetime # For datetime objects import os.path # To manage paths import sys # To find out the script name (in argv[0]) # Import the backtrader platform import backtrader as bt # Create a Stratey class TestStrategy(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): self.dataclose = self.datas[0].close def next(self): # Simply log the closing price of the series from the reference self.log('Close, %.2f' % self.dataclose[0]) if self.dataclose[0] < self.dataclose[-1]: # current close less than previous close if self.dataclose[-1] < self.dataclose[-2]: # previous close less than the previous close # BUY, BUY, BUY!!! (with all possible default parameters) self.log('BUY CREATE, %.2f' % self.dataclose[0]) self.buy() if __name__ == '__main__': # Create a cerebro entity cerebro = bt.Cerebro() # Add a strategy cerebro.addstrategy(TestStrategy) # Datas are in a subfolder of the samples. Need to find where the script is # because it could have been called from anywhere datapath = os.path.join('../data/raw/demo/orcl-1995-2014.txt') # Create a Data Feed data = bt.feeds.YahooFinanceCSVData( dataname=datapath, # Do not pass values before this date fromdate=datetime.datetime(2000, 1, 1), # Do not pass values before this date todate=datetime.datetime(2000, 12, 31), # Do not pass values after this date reverse=False) # Add the Data Feed to Cerebro cerebro.adddata(data) # Set our desired cash start cerebro.broker.setcash(100000.0) # Print out the starting conditions print('Starting Portfolio Value: %.2f' % cerebro.broker.getvalue()) # Run over everything bt.Cerebro().run() # Print out the final result print('Final Portfolio Value: %.2f' % cerebro.broker.getvalue()) -
Images ... (and those in external servers even less) don't help when the complete stack trace is text and the most relevant information is at the bottom (which is missing)
In any case ... a very reasonable guess: you have not gotten the data files from the repository.