[amibroker] SetTradeDelays function

["Antonio MARRA" <ant.marra65@xxxxxx>]

Hello All,

My first purpose is to understand better the AA functions
(scan-exploration-backtesting).
I read the user's guide and I also searched into the Amibroker mailing list
Collection.
I found useful the code posted with the message 30344, so I have used a part
of it for testing.

Well, starting an exploration it give me a right buy and sell price in the
"results" window.
But the backtesting don't give the same results: the dates and prices don't
correspond.

This is the code I used (tested on one single stock [BRCM], from 01/01/2003
to 31/01/2003):

	Filter = Buy=1 OR Sell=1;// condition TRUE (1) or FALSE (0)

	AddColumn(O,"Open",1.2);
	AddColumn(C,"Close",1.2);
	AddColumn(O,"Buy",1.2);
	AddColumn(C,"Sell",1.2);

	//DELAY manual setting
	Buy_Delay   = 1;
	Sell_Delay  = 2;
	Short_Delay = 1;
	Cover_Delay = 1;
	SetTradeDelays(Buy_Delay, Sell_Delay, Short_Delay, Cover_Delay);


	//Buy=Cross(C,EMA(C,10));  
	//Sell=Cross(EMA(C,10),C); 
	Buy=1;
	Sell=1;

	BuyPrice = Ref(O,Buy_Delay);
	SellPrice = Ref(C,Sell_Delay);

	AddColumn(Buy_Delay,"Buy Delay",1.0);
	AddColumn(IIf(Buy==1,BuyPrice,0),"Delayed Buy Price",1.2);

	AddColumn(Sell_Delay,"Sell Delay",1.0);
	AddColumn(IIf(Sell==1,SellPrice,0),"Delayed Sell Price",1.2);



Then, if I change

	Buy=1;
	Sell=1;
With
	Buy=Cross(C,EMA(C,10));  
	Sell=Cross(EMA(C,10),C);

Both the exploration and the backtesting seem to work.
What I'm a doing wrong ?

Thanks for your valuable help.
Best Regards

Antonio



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