Infinite Loop Problem with For Loop

• 08/27/2021 at 9:05 PM #176391
  virus010

  Hello,

  i read about the problem with PRT Engine and for in for loops. I have the following indicator and want to run it in my ProScreener.

  Problem: i get the infinite loop error.

  How can i solve this?

  Indicates if price is near a major resistance in a 200 day period

  DEFPARAM CALCULATEONLASTBARS = 500 timeRange=200 result=0 searchLeftOffset1=5 searchLeftOffset2=20 //check if actual close is near highest close in timeRange if close > 0.97*highest[timeRange](close) AND close < 1.02*highest[timeRange](close) then //if so, search for next close within timerange, that meets the same criteria. Start search searchLeftOffset1 Days before for z = searchLeftOffset1 to timeRange do if close[z] > 0.96*highest[timeRange](close) AND close[z] < 1.02*highest[timeRange](close) then //if second day found, search for next close within timerange, that meets the same criteria. Start search searchLeftOffset2 Days before for y = z + searchLeftOffset2 to (timeRange) do if close[y] > 0.96*highest[timeRange](close) AND close[y] < 1.02*highest[timeRange](close) then result=1 endif next endif next else result=0 endif return result

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  DEFPARAM CALCULATEONLASTBARS = 500 timeRange=200 result=0 searchLeftOffset1=5 searchLeftOffset2=20   //check if actual close is near highest close in timeRange if close > 0.97*highest[timeRange](close) AND close < 1.02*highest[timeRange](close) then   //if so, search for next close within timerange, that meets the same criteria. Start search searchLeftOffset1 Days before for z = searchLeftOffset1 to timeRange do   if close[z] > 0.96*highest[timeRange](close) AND close[z] < 1.02*highest[timeRange](close) then   //if second day found, search for next close within timerange, that meets the same criteria. Start search searchLeftOffset2 Days before for y = z + searchLeftOffset2  to (timeRange) do if close[y] > 0.96*highest[timeRange](close) AND close[y] < 1.02*highest[timeRange](close) then result=1 endif   next endif   next else result=0 endif   return result

  Thank you

  Best regards,

  Branimir

  

  virus010

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  09/08/2021 at 4:59 PM #177035
  robertogozzi

  Too many iterations, almost 40K per candle!

  Try removing line 1 and setting 50K units, to allow enough bars to run.

  It will take quite a long time to calculate!

  I removed line 1, used 10K units and set timerange=50, and it worked!

   

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  virus010

  

  robertogozzi

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  09/09/2021 at 7:19 AM #177077
  Nicolas

  You can try to encapsulate your loop into a condition with “IsLastBarUpdate”, so that the code is only once each time the last bar is updated (new price received), see:

  IsLastBarUpdate

  Speed calculation with IsLastBarUpDate instruction

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  Nicolas

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