[amibroker] Re: How do I get the price and indicator values in the custom backtester?

[ezbentley]

Mike,

I have another simple question. The position sizing code looks as follows:

if (Status("action") == actionPortfolio) {
        bo = GetBacktesterObject();
        bo.PreProcess();
        for (bar = 0; bar < BarCount; bar++) {
                CurrentEquity = bo.Equity;
                for (sig = bo.GetFirstSignal(bar); sig; sig = 
bo.GetNextSignal(bar)) {
                        SetForeign(sig.Symbol);
                        RiskPerTrade = Ref(2 * ATR(10), -1);
                        NumberOfShares = AccountRiskPercent / RiskPerTrade[bar] 
* CurrentEquity;
                        EntryPrice = sig.Price;
                        sig.PosSize = NumberOfShares[bar] * EntryPrice[bar];
                        RestorePriceArrays();
                }
                bo.ProcessTradeSignals(bar);
        }
        bo.PostProcess();
}

How do I show the RiskPerTrade for each trade in the backtest report? I tried 
sig.AddCustomMetric("RiskPerTrade", RiskPerTrade) but the signal object doesn't 
seem to 
have the AddCustomMetric method. I also tried using the trade object as the 
example in 
the user manual, but I don't know how to let the trade object access the ATR 
function, 
which is necessary to calculate risk per trade. 

Thanks,