After optimization, how to obtain optimization results ?

[MuSaCN]

I usually use:

    def stop(self):
        print("stop(): ", self.params.Para0, self.broker.getvalue(), self.broker.get_cash())

After optimization， It just print message. how to obtain opt results?

[vladisld]

please go over the following docs:

• https://www.backtrader.com/docu/cerebro/#returning-the-results
• https://www.backtrader.com/docu/optimization-improvements/#results-management

some example from the docs:

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

    cerebro = bt.Cerebro()
    data = bt.feeds.BacktraderCSVData(dataname=args.data)
    cerebro.adddata(data)

    cerebro.addanalyzer(bt.analyzers.Returns)
    cerebro.optstrategy(StFetcher, idx=StFetcher.COUNT())
    results = cerebro.run(maxcpus=args.maxcpus, optreturn=args.optreturn)

    strats = [x[0] for x in results]  # flatten the result
    for i, strat in enumerate(strats):
        rets = strat.analyzers.returns.get_analysis()
        print('Strat {} Name {}:\n  - analyzer: {}\n'.format(
            i, strat.__class__.__name__, rets))

[MuSaCN]

thanks, it is useful to me.