How to code UNTIL?

• 11/19/2019 at 4:44 AM #113082
  sulimaster

  Hi

  I’m trying to code UNTIL using the below example. I used IF, WHILE and BREAK but an infinite loop was detected and stopped the backtest. Help please to correct my code.

  If my long trade closes early due to a stop loss, then I don’t want the system to enter into another long trade while x is still greater than y UNTIL  y > x i.e. exit long position condition is met which should reset a back to zero.

  I have tried to code a = 1 whilst x is still greater than y when my long trade closes early due to a stop loss.

  x = AroonUp[10] y = AroonDown[10] a = 0 IF PositionPerf(1) < 0 AND TRADEPRICE(1) < TRADEPRICE(2) THEN WHILE (x > y) a = 1 IF (y > x) THEN BREAK ENDIF WEND ENDIF // Conditions to enter long positions // IF a = 0 AND (x > y) AND (x > 70) THEN BUY 1 PERPOINT AT MARKET ENDIF // Conditions to exit long positions // IF (y > x) THEN SELL AT MARKET ENDIF

  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

  x = AroonUp[10] y = AroonDown[10]   a = 0   IF PositionPerf(1) < 0 AND TRADEPRICE(1) < TRADEPRICE(2) THEN WHILE (x > y) a = 1 IF (y > x) THEN BREAK ENDIF WEND ENDIF   // Conditions to enter long positions // IF a = 0 AND (x > y) AND (x > 70) THEN BUY 1 PERPOINT AT MARKET ENDIF   // Conditions to exit long positions // IF (y > x) THEN SELL AT MARKET ENDIF

  Thanks

  Sachin

  

  sulimaster

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  11/19/2019 at 8:25 AM #113084
  robertogozzi

  It’s an infinite loop, in between WHILE ….WEND initial conditions  never change.

  Indeed there’s no need for an iteration, another IF…ENDIF will do.

  Replace lines 7-12 with:

  If x > y then a = 1 ENDIF

  1 2 3

  If x > y then    a = 1 ENDIF

   

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  sulimaster, Nicolas

  

  robertogozzi

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  11/19/2019 at 6:25 PM #113144
  sulimaster

  Thanks Roberto

  However, wouldn’t the suggested code change prevent the next long trade even after y becomes greater than x if there is no other trade executed after the stop loss exit trade?

  

  sulimaster

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  11/19/2019 at 6:42 PM #113147
  robertogozzi

  You’ll have to assign a different value to a when it’s time to, not always.

  Replace line 4 with:

  ONCE a = 0

  1	ONCE a = 0

  Then you’ll need to add:

  a = 0

  1

  a = 0

  somewhere in the code to reenable trading when you want to, according to your conditions.

   

   

  

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