Re: [amibroker] afl coding problem - buy signal when 2 conditions - one and then the other

["Howard B" <howardbandy@xxxxxxxxx>]

Hi Greenhorn --

Here is an example of an afl program that does what you ask.

//	MultipleConditions.afl
//
//	Example of afl to buy when
//	multiple conditions occur in sequence
//
//	The first condition is a setup.
//	The second condition is a trigger.
//
//	The setup must occur between exactly 1 and 9 bars
//	before the trigger, but not on the bar of the trigger.
//
Setup = StochD(14,3,3) <= 30;
Trigger = Cross(C,MA(C,5));

Buy = Trigger
		AND NOT Setup
		AND BarsSince(Setup) >=1
		AND BarsSince(Setup) <= 9;

Sell = BarsSince(Buy) >=3;

Buy = ExRem(Buy,Sell);
Sell = ExRem(Sell,Buy);

Plot(C,"C",colorBlack,styleCandle);
Plot(Setup, "Setup", colorGreen, styleLine|styleOwnScale);
Plot(Trigger, "Trigger", colorBlue, styleLine|styleOwnScale);
PlotShapes(Buy * shapeUpArrow + Sell * shapeDownArrow,
	IIf(Buy,colorGreen,colorRed));

Thanks,
Howard
www.quantitativetradingsystems.com


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