RE: [amibroker] Help NEEDED with BuyPrice

["dbw451" <dbw451@xxxxxxxxxxx>]

Hi Ernie,

 

I don’t exactly understand what you’re trying to do, but maybe something like this helps:

 

SetTradeDelays(1,1,1,1);

BuyStop = Ref(H,-1)*1.01; //the formula for Buy stop level;

SellStop = Ref(L,-1)*0.99; //the formula for Sell stop level;

 

BuyPrice = Max( BuyStop, Low ); // make sure buy price not less than Low

SellPrice = Min( SellStop, High ); // make sure sell price not greater than High

 

Buy = H > BuyPrice;

Sell = L < SellPrice;

 

If this is a buy and short system, then the Sell and SellPrice variables should be Short and ShortPrice.  One problem you’ll have with the BuyPrice and SellPrice is when they are equal to the Low or High.  This will not reflect reality because it’s pure luck to catch the high or low price for a day.  A better approach would be to use the Open price:

 

BuyPrice = IIf(O > BuyStop, O, BuyStop);        // make sure buy price not less than Low

SellPrice = IIf(O < SellStop, O, SellStop);     // make sure sell price not greater than High

 

Hope this is of some use.

 

Regards,

 

David

 

 

---

From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf Of Ernie Newman
Sent: 02/26/2007 5:26 PM
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] Help NEEDED with BuyPrice

 

I am trying to back test different systems that want to buy
Todays High Price + .125 and the following code works only when the
next days price is > the h,-1 otherwise it will buy the h of the
entry day and not the day before.
This should a simple thing to do but I can't make it work??
THANKS
Ernie

CondA = C > O;
CondB = O < C;
SetTradeDelays(1,1,1,1);
BuyStop = Ref(H,-1); // *1.01; //the formula for Buy stop level;

SellStop = Ref(L,-1)*0.99; //the formula for Sell stop level;

Buy = CondA;

Sell = CondB;

BuyPrice = Max( BuyStop, Low ); // make sure buy price not less than
Low

SellPrice = Min( SellStop, High ); // make sure sell price not
greater than High

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