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

["ezbentley" <ezbentley@xxxxxxxxx>]

This should be a very simple question but I am new to the custom backtester.

I would like to use the price, current portfolio equity, and other indicator values to 
calculate the position size with the following code. 

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)) {
			sig.PosSize = /* What should I put here? */
		}
		bo.ProcessTradeSignals(bar);
	}
	bo.ListTrades();
}

For example, if I want to set position size to CurrentEquity * Ref(C, -1) / Ref(ATR(10), -1), 
apparently that syntax will give me an error because I cannot access C and ATR(10) in the 
usual manner. 

Can anyone help me with implementing CurrentEquity * Ref(C, -1) / Ref(ATR(10), -1) 
inside the custom backtester?

Thanks in advance,


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