Hi Mike,
            many thanks to you and Dave for replying ,,
and yes that mod you gave me has stopped the second purchase when the first is 
selling,,

many thanks
regards
Paul


  ----- Original Message ----- 
  From: Mike 
  To: [email protected] 
  Sent: Friday, April 11, 2008 9:00 AM
  Subject: [amibroker] Re: scaling question


  For "canceling" the second purchase, and based on your code snippet, 
  what about something like:

  Sell = ...
  Buy=IIf(firstpurchase,1,IIf(secondpurchase AND NOT 
  Sell,sigScaleIn,0));

  Mike

  --- In [email protected], "paulradge" <[EMAIL PROTECTED]> wrote:
  >
  > and also i'd like to find out if it's possible to cancel the second 
  purchase if the first purchase closes on the same bar,,,???
  > 
  > ----- Original Message ----- 
  > From: paulradge 
  > To: [email protected] 
  > Sent: Thursday, April 10, 2008 3:16 PM
  > Subject: [amibroker] scaling question
  > 
  > 
  > Hi ,,
  > sometimes my first purchase reaches the sell trigger on the day 
  of 
  > the second purchase and the second buy is still activated but not 
  sold on 
  > the same bar,,,
  > 
  > i do have "allow same bar exit(single bar trade)" clicked within 
  settings 
  > but the second purchase isn't sold and still remains open.
  > 
  > any thoughts please ?
  > Paul
  > 
  > fixeddollaramount=20000;
  > firstpurchase=(Ref(Longsetup,-1));
  > 
  > Secondpurchase=BarsSince(firstpurchase)==1;
  > 
  > Buy=IIf(firstpurchase,1,IIf(Secondpurchase,sigScaleIn,0));
  > 
  > PositionSize=fixeddollaramount;
  > 
  > BuyPrice =Open;
  >



   

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