Bollinger Band % for ProScreener

• 04/06/2022 at 6:30 AM #191299
  quokkasoccer

  Hello all,

  I am trying to use the bollinger % indicator in ProScreener, but It is not possible.

  ‘Error: The Indicator that you have selected is not available in ProBuilder Language. Please choose a different indicator.’

  This is a very useful indicator for system building, especially when you can select the source and moving average type.

  Does anyone have a version of this indicator compatible for ProBuilder or some sort of workaround?

  Any help much appreciated!

  

  quokkasoccer

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  04/06/2022 at 8:39 AM #191303
  robertogozzi

  You can make this indicator to be CALLed:

  // Bollinger BB% // DEFPARAM CalculateOnLastBars = 1000 p = 20 dev = 2.0 BollInf = Average[p,0](close) - (dev * std[p](close)) BollSup = Average[p,0](close) + (dev * std[p](close)) pB = ((close - BollInf) / (BollSup - BollInf)) * 100 return pB AS "Boll BB %",80 AS "Ob",20 AS "Os"

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  // Bollinger BB% // DEFPARAM CalculateOnLastBars = 1000 p       = 20 dev     = 2.0 BollInf = Average[p,0](close) - (dev * std[p](close)) BollSup = Average[p,0](close) + (dev * std[p](close)) pB      = ((close - BollInf) / (BollSup - BollInf)) * 100 return pB AS "Boll BB %",80 AS "Ob",20 AS "Os"

  or you can embed it in your screener (after removing RETURN and DEFPARAM).

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  quokkasoccer

  

  robertogozzi

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  04/06/2022 at 8:55 AM #191305
  quokkasoccer

  Thank you Roberto!

  Would it be possible to change the method used to calculate the bollinger bands? Such as an EMA or WMA?

   

  

  quokkasoccer

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  04/06/2022 at 9:00 AM #191307
  robertogozzi

  Yes, replace 0 in Average[p,0] with any value from 0 to 8 as described at https://www.prorealcode.com/documentation/average/.

   

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  quokkasoccer

  

  robertogozzi

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  04/06/2022 at 10:07 AM #191316
  quokkasoccer

  Thank you Roberto, very helpful

  

  quokkasoccer

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