IndexError: array index out of range (Renko) with 1min Dataframe

[Leo]

Here the source code:

from __future__ import (absolute_import, division, print_function,
                        unicode_literals)

import argparse
import datetime

import backtrader as bt
import backtrader.feeds as btfeed


class St(bt.Strategy):
    params = dict(
    )

    def __init__(self):
        for d in self.datas:
            bt.ind.RSI(d)

    def next(self):
        pass


def runstrat(args=None):
    args = parse_args(args)

    cerebro = bt.Cerebro()

    # Data feed kwargs
    kwargs = dict()

    # Parse from/to-date
    dtfmt, tmfmt = '%Y.%m.%d', 'T%H:%M:%S'

    for a, d in ((getattr(args, x), x) for x in ['fromdate', 'todate']):
        if a:
            strpfmt = dtfmt + tmfmt * ('T' in a)
            kwargs[d] = datetime.datetime.strptime(a, strpfmt)

    data0 = bt.feeds.GenericCSVData(dataname="new.csv",
    datetime=1,
    open=2,
    high=3,
    low=4,
    close=5,
    volume=-1,
    openinterest=-1,
    **kwargs
    )

    fkwargs = dict()
    fkwargs.update(**eval('dict(' + args.renko + ')'))

    if not args.dual:
        data0.addfilter(bt.filters.Renko, **fkwargs)
        cerebro.adddata(data0)
    else:
        cerebro.adddata(data0)
        data1 = data0.clone()
        data1.addfilter(bt.filters.Renko, **fkwargs)
        cerebro.adddata(data1)

    # Broker
    cerebro.broker = bt.brokers.BackBroker(**eval('dict(' + args.broker + ')'))

    # Sizer
    cerebro.addsizer(bt.sizers.FixedSize, **eval('dict(' + args.sizer + ')'))

    # Strategy
    cerebro.addstrategy(St, **eval('dict(' + args.strat + ')'))

    # Execute
    kwargs = dict(stdstats=False)
    kwargs.update(**eval('dict(' + args.cerebro + ')'))
    cerebro.run(**kwargs)

    if args.plot:  # Plot if requested to
        kwargs = dict(style='candle')
        kwargs.update(**eval('dict(' + args.plot + ')'))
        cerebro.plot(**kwargs)


def parse_args(pargs=None):
    parser = argparse.ArgumentParser(
        formatter_class=argparse.ArgumentDefaultsHelpFormatter,
        description=(
            'Renko bricks sample'
        )
    )

    parser.add_argument('--data0', default='../../datas/2005-2006-day-001.txt',
                        required=False, help='Data to read in')

    # Defaults for dates
    parser.add_argument('--fromdate', required=False, default='',
                        help='Date[time] in YYYY-MM-DD[THH:MM:SS] format')

    parser.add_argument('--todate', required=False, default='',
                        help='Date[time] in YYYY-MM-DD[THH:MM:SS] format')

    parser.add_argument('--cerebro', required=False, default='',
                        metavar='kwargs', help='kwargs in key=value format')

    parser.add_argument('--broker', required=False, default='',
                        metavar='kwargs', help='kwargs in key=value format')

    parser.add_argument('--sizer', required=False, default='',
                        metavar='kwargs', help='kwargs in key=value format')

    parser.add_argument('--strat', required=False, default='',
                        metavar='kwargs', help='kwargs in key=value format')

    parser.add_argument('--plot', required=False, default='',
                        nargs='?', const='{}',
                        metavar='kwargs', help='kwargs in key=value format')

    parser.add_argument('--renko', required=False, default='',
                        metavar='kwargs', help='kwargs in key=value format')

    parser.add_argument('--dual', required=False, action='store_true',
                        help='put the filter on a second version of the data')

    return parser.parse_args(pargs)


if __name__ == '__main__':
    runstrat()

Command:

btrenko.py --renko size=35,align=10.0 --plot --dual

Here errors:

Traceback (most recent call last):
  File "btrenko.py", line 126, in <module>
    runstrat()
  File "btrenko.py", line 74, in runstrat
    cerebro.run(**kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/backtrader-1.9.74.123-py3.8.egg/backtrader/cerebro.py", line 1127, in run
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/backtrader-1.9.74.123-py3.8.egg/backtrader/cerebro.py", line 1293, in runstrategies
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/backtrader-1.9.74.123-py3.8.egg/backtrader/cerebro.py", line 1652, in _runonce
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/backtrader-1.9.74.123-py3.8.egg/backtrader/lineiterator.py", line 297, in _once
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/backtrader-1.9.74.123-py3.8.egg/backtrader/lineiterator.py", line 297, in _once
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/backtrader-1.9.74.123-py3.8.egg/backtrader/lineiterator.py", line 297, in _once
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/backtrader-1.9.74.123-py3.8.egg/backtrader/linebuffer.py", line 630, in _once
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/backtrader-1.9.74.123-py3.8.egg/backtrader/lineroot.py", line 165, in oncestart
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/backtrader-1.9.74.123-py3.8.egg/backtrader/linebuffer.py", line 672, in once
IndexError: array index out of range

My dataset got 65k rows. 1min data.

I don't really understand why this doesn't work. I've already checked data for NaN values or errors, but they are clean.

Can you help me? Thank you!

[Leo]

Ok problem was renko brick size. I set 1 instead of 35 and it worked.

[Leo]

But it seems to work only with 1 as brick size.