I am new to coding, trying to use backtrader to do a simple backtesting process. I was able to execute the buy and sell, but when i am trying to plot the graph it shows: AttributeError: type object 'Gcf' has no attribute '_set_new_active_manager'
My code is as below:
print('Starting Portfolio Value: %.2f' % cerebro.broker.getvalue())
cerebro.run()
print('Final Portfolio Value: %.2f' % cerebro.broker.getvalue())
cerebro.plot()
See if any one can offer some help, many thanks.
The problem doesn't seem to be printing the data. You are making an error initializing an object. You need to share the other part of the code.
I wanted to help you by developing a test application. The test application was based on the Plotting application. I used this link to fix the "Fix ImportError from matplotlib.dates" error. I used this link to use the test data (2005-2006-day-001.txt) in the application. Below is a demo sample:
from __future__ import (absolute_import, division, print_function, unicode_literals)
import backtrader as bt
class St(bt.Strategy):
def __init__(self):
self.sma = bt.indicators.SimpleMovingAverage(self.data)
data = bt.feeds.BacktraderCSVData(dataname='dataset.txt')
cerebro = bt.Cerebro()
cerebro.adddata(data)
cerebro.addstrategy(St)
cerebro.run()
cerebro.plot()
Current matplot version causes "Fix ImportError from matplotlib.dates". The way to avoid this error is to use older matplot version by running the following codes:
pip uninstall matplotlib
pip install matplotlib==3.1.1
Below is the application test image:
