Data for Multiple Securities

[Dimitar Dimitrov]

Hi guys,

I am trying to add data for multiple securities. I thought using a for loop could help, but it looks like something is wrong. It sais that "data" is not defined. If i define it as a DataFrame it does not work either. Can you please help?

Many thanks and regards,
Dimitar

import backtrader as bt
import datetime
import pandas_datareader as wb
import pandas as pd



if __name__=="__main__":

    cerebro = bt.Cerebro()

    symbols = ["SPY", "IWM", "QQQ", "EFA", "EEM","VNQ", "LQD", "GLD", "SHY", "IEF", "TLT", "AGG"]

    for i in symbols:
       data[i] = bt.feeds.YahooFinanceData(dataname=i, fromdate=datetime.datetime(2000,1,1), todate=datetime.datetime.today())

    cerebro.adddata(data)

    cerebro.run()

    cerebro.plot()

[ab_trader]

In

cerebro.adddata(data)

data should be bt data feed object. In your script data is a list of data feed objects, but not a single data feed object. Each data feed should be added to cerebro using separate adddata call. Search the forum, look up the docs and articles, this was discussed tons of times and described well.