Displaying Scale Out Pastie For Amibroker (AFL)

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_SECTION_BEGIN("Scale Out: Futures");
     
SetTradeDelays(0,0,0,0);
BuyPrice = Close;
ShortPrice = Close;
SetOption("FuturesMode", True);
SetOption("InitialEquity", 10000000);
 
Buy = Cross(MA(C, 20), MA(C,50));
Short = Cross(MA(C,50), MA(C,20));
SystemExitLong = Cross(MA(C,18), C); // This value will be adjusted according the system's exit rules
SystemExitShort = Cross(C, MA(C,18));
StopAmt = 1.5; //number of points
ProfitTarget = 3;//number of points
 
 
 
TickIncrement = Param("Tick Increment", 0.25, 0.1, 1, 0.1);//ES = 0.25, NQ = 0.10, YM = 1
TickIncrement = TickIncrement * 1; //change this value according to the expected slippage when stops are tiggered
 
//set begining value of essential variables
TrailingStop = 0; // This value will be adjusted to FirstProfitTarget only after SecondProfitTarget is hit
StopLoss = 0;
FirstProfitTarget = 0;
SecondProfitTarget = 0;
//set begining values for long variables
priceatbuy=0; 
highsincebuy = 0; 
Sell = 0;
TradeDate = DateTime();
//set begining values for short variables
priceatshort= 0; 
lowsincebuy = 0;
Cover = 0; 
 
//set exit to zero
exit = 0;  
PortEq = Equity();
 
///////////////////////////////////////////////////////////////////////////
//////////////Begin code to scale out of positions/////////////////////////
///////////////////////////////////////////////////////////////////////////
for( i = 0; i < BarCount; i++ ) 
{ 
   if( priceatbuy == 0 AND Buy[ i ] ) 
    { 
        //initialize required variables
        priceatbuy = BuyPrice[ i ]; 
        StopLoss = StopAmt[i];
        FirstProfitTarget = StopAmt[i];
        SecondProfitTarget = ProfitTarget[i];
    } 
 
   if( priceatshort == 0 AND Short[ i ] ) 
    {
        //initialize required variables
       priceatshort = ShortPrice[ i ];
        StopLoss = StopAmt[i];
        FirstProfitTarget = StopAmt[i];
        SecondProfitTarget = ProfitTarget[i];
    } 
 
   if( priceatbuy > 0 ) 
    { 
       highsincebuy = Max( High[ i ], highsincebuy ); 
//un-comment statement below for debuging
//_TRACE("LongEntry: " + DateTimeToStr(TradeDate[i]) +"/ BuyPrice: " +BuyPrice[i] +"/ Equity in-loop: " +PortEq[i]);
 
//check if 1st target hit and Buy not = 1
      if( Buy[i] != 1 AND exit == 0 AND
          High[ i ] >= FirstProfitTarget + TickIncrement  + priceatbuy ) 
       { 
         // first profit target hit - scale-out 
         exit = 1; 
         Buy[ i ] = sigScaleOut; 
          BuyPrice[i] = FirstProfitTarget + priceatbuy;
       } 
 
//check if 2nd target hit and Buy not = 1
      if( Buy[i] != 1 AND exit == 1 AND
          High[ i ] >= SecondProfitTarget + TickIncrement  + priceatbuy ) 
       { 
         // second profit target hit - scale-out 
         exit = 2; 
            Buy[ i ] = sigScaleOut;
            BuyPrice[i] = SecondProfitTarget + priceatbuy;
                //if close of bar that sets trailing stop is higher than target 1 assume
                //trailing stop is not triggered on that bar.
                SetTrail = IIf(Close[i] > priceatbuy + FirstProfitTarget, 1, 0);
            //after hitting SecondProfitTarget, move
            //stop to FirstProfitTarget position
            TrailingStop = FirstProfitTarget + priceatbuy;   
                                                                     
       } 
 
//check if trailing stop hit and Buy not = 1
                //make sure SetTrail is not = 1 to ensure trail stop is not hit
                //unless close of bar where trail stop is set is lower than
                //trail stop
      if( Buy[i] != 1 AND exit == 2 AND SetTrail == 0 AND
          Low[ i ] <=  TrailingStop - TickIncrement  ) 
       { 
         // Trailing Stop target hit - exit trade with final contract
         exit = 3; 
         SellPrice[ i ] = TrailingStop - TickIncrement  ; //accounting for one tick slippage
       }
 
//check if system exit hit and Buy not = 1
      if( Buy[i] != 1 AND exit <= 2 AND
          SystemExitLong [i]) //need to substitute system exit here
       { 
         // System Exit hit - exit all remaining contracts 
         exit = 3; 
            SellPrice[i] = Close[i]; //all three contracts would exit here
       }
 
//check if stop loss hit and Buy not = 1
      if(Buy[i] != 1 AND Low[ i ] <= priceatbuy - StopLoss - TickIncrement  ) 
       { 
         // Stop Loss hit - exit 
         exit = 3;    
         SellPrice[ i ] = Min( Open[ i ], priceatbuy - StopLoss - TickIncrement 
); //assume one tick slippage
       } 
//un-comment statement below for debuging
//_TRACE("Buy = " + Buy[i] +"/ Exit: " +exit);
 
                //Reset the SetTrail variable back to zero before processing next bar
                SetTrail = 0;
 
//check if exit complete
      if( exit >= 3 ) 
       { 
         Buy[ i ] = 0; 
         Sell[ i ] = exit + 1; // mark appropriate exit code 
         exit = 0; 
         priceatbuy = 0; // reset price 
         highsincebuy = 0; 
          ThirdProfitTarget  = 0;
          TrailingStop  = 0;
 
        }
    } //exit: Check exits for longs
 
    if( priceatshort > 0 ) 
    {  
       lowsincebuy = Min( Low[ i ], lowsincebuy );
//un-comment statement below for debuging
//_TRACE("ShortEntry: " + DateTimeToStr(TradeDate[i]) +"/ ShortPrice = " +priceatshort +"/ Equity in-loop: " +PortEq[i]);
 
//check if 1st target hit and short not = 1
      if( Short[i] != 1 AND exit == 0 AND
          Low[ i ] <= priceatshort - FirstProfitTarget - TickIncrement ) 
       { 
         // first profit target hit - scale-out 
         exit = 1; 
         Short[ i ] = sigScaleOut; 
          ShortPrice[i] = priceatshort - FirstProfitTarget;
       }  
 
//check if 2nd target hit and short not = 1
      if( Short[i] != 1 AND exit == 1 AND
          Low[ i ] <= priceatshort - SecondProfitTarget - TickIncrement ) 
       { 
         // second profit target hit - scale-out 
         exit = 2; 
            Short[ i ] = sigScaleOut;
           ShortPrice[i] = priceatshort - SecondProfitTarget;
                //if close of bar that sets trailing stop is lower than target 1 assume
                //trailing stop is not triggered on that bar.
                SetTrail = IIf(Close[i] < priceatshort - FirstProfitTarget, 1, 0);
            //after hitting SecondProfitTarget, move  
            //stop to FirstProfitTarget position
            TrailingStop = priceatshort - FirstProfitTarget ; 
        }
//check if trailing stop hit and short not = 1
                //make sure SetTrail is not = 1 to ensure trail stop is not hit
                //unless close of bar where trail stop is set is higher than
                //trail stop
      if( Short[i] != 1 AND exit == 2 AND SetTrail == 0 AND
          High[ i ] >=  TrailingStop + TickIncrement  ) 
       { 
         // Trailing Stop target hit - exit trade with final contract
         exit = 3; 
         CoverPrice[ i ] = TrailingStop + TickIncrement ;
       }
//check if system exit and short not = 1
      if( Short[i] != 1 AND exit <= 2 AND
          SystemExitShort[i]) //need to substitute system exit here
       { 
         // System Exit hit - exit all remaining contracts 
         exit = 3; 
            CoverPrice[i] = Close[i]; //all three contracts would exit here
       }
 
//check if stop loss hit and short not = 1
      if(Short[i] != 1 AND High[ i ] >= priceatshort  + StopLoss + TickIncrement
 ) 
       { 
         // Stop Loss hit - exit 
         exit = 3;    
         CoverPrice[ i ] = Max( Open[ i ], priceatshort  + StopLoss +
TickIncrement  ); //assume one tick slippage
        } 
//un-comment statement below for debuging
//_TRACE("Short = " + Short[i] +"/ Exit: " +exit);
 
                //Reset the SetTrail variable back to zero before processing next bar
                SetTrail = 0;
//check if exit complete
      if( exit >= 3 ) 
       { 
         Short[ i ] = 0; 
         Cover[ i ] = exit + 1; // mark appropriate exit code
         exit = 0; 
         priceatshort = 0; // reset price
         highsincebuy = 0; 
          ThirdProfitTarget  = 0;
          TrailingStop  = 0;
 
        }
    } //exit: check exits for shorts
 
} //exit: loop
 
//trade three contracts with every entry signal
SetPositionSize(3,spsShares); 
//scale out one contract at a time
SetPositionSize( 1, IIf( Short == sigScaleOut OR Buy == sigScaleOut, spsShares,
spsNoChange ) );
///////////////////////////////////////////////////////////////////////////
//////////////End of code to scale out of positions////////////////////////
///////////////////////////////////////////////////////////////////////////
_SECTION_END();
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