Conversion of Pine Script OBV OSC 0.1

• 09/14/2021 at 12:17 PM #177548
  DavidMClarke1974

  High guys.

  I am in the process of converting from Tradingview to Prorealtime but want to bring my strategy with me. Unfortunately however, Prorealtime does not have the indicators i use so i need to convert them. How do i go about doing that? Are there any conversion notes/articles i can read that will help me convert things like – “obv(src) => cum(change(src) > 0 ? volume : change (src) < 0 ? -volume : 0*volume)”. Creating the variables such as src and volume is straight forward, it’s the other bits i’m having issues with.

  Any help would be greatly appreciated. I would be happy to code it myself if there is any helpful guidance.

   

  Thanks in advance

  

  DavidMClarke1974

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  09/14/2021 at 4:12 PM #177565
  robertogozzi

  There you go:

  Periods = 20 MyOBV = OBV(close) Sma = Average[Periods,0](MyOBV) Diff = MyOBV - Sma RETURN Diff AS "Difference"

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  Periods = 20 MyOBV   = OBV(close) Sma     = Average[Periods,0](MyOBV) Diff    = MyOBV - Sma RETURN Diff AS "Difference"

  

  robertogozzi

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  09/14/2021 at 4:32 PM #177572
  DavidMClarke1974

  Thanks Roberto.

  It looks like the conversion has been simplified as it doesn’t produce the same output as the original.

  I have attached a screen shot of the original in the hope that it helps.

  Thanks again for your assistance.

  

  DavidMClarke1974

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  09/15/2021 at 8:47 AM #177592
  robertogozzi

  I needed to see screenshots and as you had not posted any link I found this one OBV Oscillator

  I see some code was appended at a later moment. Can you provide a link to that code and pic, so that I can find details about its purpose?

  There you go:

  // OBV Oscillator2 // // On Balance Volume Oscillator // // https://www.tradingview.com/script/Ox9gyUFA-Indicator-OBV-Oscillator/ // https://www.prorealcode.com/topic/conversion-of-pine-script-obv-osc-0-1/ // // It makes easier to detect DIVERGENCES // // Periods = 20 // Periods2 = 14 Periods = max(1,min(999,Periods)) Periods2 = max(1,min(999,Periods2)) // MyOBV = OBV(close) ma1 = 0 IF BarIndex > max(Periods,Periods2) THEN Sma = Average[Periods,0](MyOBV) Diff = MyOBV - Sma // --- added later: // (https://www.prorealcode.com/topic/conversion-of-pine-script-obv-osc-0-1/#post-177572) Sma = Average[Periods,0](MyOBV) Diff = MyOBV - Sma ////////////////////////////////// ONCE wmaPERC = 1 / Periods2 ONCE maP = max(1,round(exp(0.5*log(Periods2)))) // ma1 = (Diff * wmaPERC) + (ma1[1] * (1 - wmaPERC)) //Wilder Average 1 //ma1 = ((ma1[1] * (Periods2 - 1)) + Diff) / Periods2 //Wilder Average 2 // ma2 = average[maP,0](ma1) r = 255 //Orange g = 100 b = 10 IF ma1 > ma2 THEN r = 20 //Cyan g = 150 b = 255 ENDIF ma3 = ma1 * exp(0.15*log(Periods2)) //DrawText("•",BarIndex,Ma3,Dialog,Bold,10) coloured(r,g,b,255) // --- end additional code ENDIF RETURN Diff AS "Difference",ma3 AS "ma3"

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  // OBV Oscillator2 // // On Balance Volume Oscillator // // https://www.tradingview.com/script/Ox9gyUFA-Indicator-OBV-Oscillator/ // https://www.prorealcode.com/topic/conversion-of-pine-script-obv-osc-0-1/ // // It makes easier to detect DIVERGENCES // // Periods  = 20 // Periods2 = 14 Periods     = max(1,min(999,Periods)) Periods2    = max(1,min(999,Periods2)) // MyOBV       = OBV(close) ma1         = 0 IF BarIndex > max(Periods,Periods2) THEN    Sma        = Average[Periods,0](MyOBV)    Diff       = MyOBV - Sma    // --- added later:    //    (https://www.prorealcode.com/topic/conversion-of-pine-script-obv-osc-0-1/#post-177572)    Sma         = Average[Periods,0](MyOBV)    Diff        = MyOBV - Sma    //////////////////////////////////    ONCE wmaPERC = 1 / Periods2    ONCE maP = max(1,round(exp(0.5*log(Periods2))))    //    ma1   = (Diff * wmaPERC) + (ma1[1] * (1 - wmaPERC))     //Wilder Average 1    //ma1 = ((ma1[1] * (Periods2 - 1)) + Diff) / Periods2   //Wilder Average 2    //    ma2 = average[maP,0](ma1)    r = 255                          //Orange    g = 100    b = 10    IF ma1 > ma2 THEN       r = 20                        //Cyan       g = 150       b = 255    ENDIF    ma3 = ma1 * exp(0.15*log(Periods2))    //DrawText("•",BarIndex,Ma3,Dialog,Bold,10) coloured(r,g,b,255)    // --- end additional code ENDIF RETURN Diff AS "Difference",ma3 AS "ma3"

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  robertogozzi

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  09/16/2021 at 8:41 AM #177691
  DavidMClarke1974

  Thanks Roberto

  I’m going to have a play with this today.

   

  Thanks again.

  

  DavidMClarke1974

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