[amibroker] Help with Buy Sell Signal

["Ernie Newman" <ewn87544@xxxxxxxxxxx>]

Hi 
 I am trying to test a Profit Test using support and resistance.
I want to buy only if the price hits the S1 level and buy at that 
price and sell only when the price reaches the R1 level.
Where 
PP= (High+Low+Close)/3;
R1=(PP * 2) - Low;
S1= (PP * 2) - High;
The below buys and sells the correct price only if the price reaches
 that level otherwise it could buy the open or sell the close.
How can I make it not buy if the price is not reached or sell.

BuyPrice = S1;
Buy = BuyPrice;
SellPrice = R1;
Sell = SellPrice;

Thanks
 Ernie



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