Parabolic SAR Code

• 01/13/2018 at 11:29 PM #59394
  tom123

  Hi all,

  I was wondering if anyone has the code for the Parabolic SAR indicator and is willing to share? I know the indicator is accessible through calling SAR but I would like the code behind it.

  Thanks!

   

  

  tom123

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  01/14/2018 at 12:24 AM #59397
  AVT

  general background: http://www.incrediblecharts.com/indicators/parabolic_sar.php

  formula stuff: http://www.tradesignalonline.com/lexicon/view.aspx?id=12528&se=PSAR

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  AVT

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  01/14/2018 at 12:20 PM #59421
  supertiti

  Hi Tom,

  Here you have the code of SAR from an Italian forum :

  have a nice day

  // SAR - Parabolic SAR 11.11.13 // Questo codice vi propone l’algoritmo per la riproduzione del Parabolic SAR // Parametri // increment (increment = 0.02) // initial (initial = 0.02) // limite (limite = 0.2) IF BARINDEX < 2 THEN parabolic = LOW islong = 1 af = limite hp = HIGH lp = LOW ELSE IF islong THEN parabolic = parabolic + af * (hp - parabolic) parabolic = MIN(parabolic, LOW[1]) parabolic = MIN(parabolic, LOW[2]) ELSE parabolic=parabolic + af * (lp - parabolic) parabolic=MAX(parabolic, HIGH[1]) parabolic=MAX(parabolic, HIGH[2]) ENDIF reverse = 0 IF islong THEN IF LOW < parabolic THEN islong = 0 reverse = 1 parabolic = hp lp = LOW af = initial ENDIF ELSE IF HIGH > parabolic THEN islong = 1 reverse =1 parabolic = lp hp = HIGH af = initial ENDIF ENDIF IF NOT reverse THEN IF islong THEN IF HIGH > hp THEN hp = HIGH af = af + increment af = MIN (af,limite) ENDIF ELSE IF LOW < lp THEN lp = LOW af = af + increment af = MIN (af,limite) ENDIF ENDIF ENDIF ENDIF //////////////////////////////////////////////////////////////// RETURN parabolic as " parabolic "

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  // SAR - Parabolic SAR        11.11.13   // Questo codice vi propone l’algoritmo per la riproduzione del Parabolic SAR // Parametri // increment (increment = 0.02)   // initial (initial = 0.02)               // limite (limite = 0.2)                   IF BARINDEX < 2 THEN      parabolic = LOW      islong = 1      af = limite      hp = HIGH      lp = LOW ELSE      IF islong THEN           parabolic = parabolic + af * (hp - parabolic)           parabolic = MIN(parabolic, LOW[1])           parabolic = MIN(parabolic, LOW[2])      ELSE           parabolic=parabolic + af * (lp - parabolic)           parabolic=MAX(parabolic, HIGH[1])           parabolic=MAX(parabolic, HIGH[2])      ENDIF           reverse = 0           IF islong THEN           IF LOW < parabolic THEN                islong = 0                reverse = 1                parabolic = hp                lp = LOW                af = initial           ENDIF      ELSE           IF HIGH > parabolic THEN                islong = 1                reverse =1                parabolic = lp                hp = HIGH                af = initial           ENDIF      ENDIF           IF NOT reverse THEN           IF islong THEN                IF HIGH > hp THEN                     hp = HIGH                     af = af + increment                     af = MIN (af,limite)                ENDIF           ELSE                IF LOW < lp THEN                     lp = LOW                     af = af + increment                     af = MIN (af,limite)                ENDIF           ENDIF      ENDIF      ENDIF ////////////////////////////////////////////////////////////////   RETURN parabolic as " parabolic "

   

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  supertiti

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  01/14/2018 at 12:43 PM #59429
  bolsatrilera

  Here you have another  code of SAR

  REM SAR if barindex < 2 then facteur = 0.02 tmpSAR = low extreme = low tendance = 1 else if tendance[ 1 ] = 1 then extreme = max( extreme[ 1 ], high ) if tmpSAR[1] > low then tendance = -1 facteur = 0.02 tmp = max(high,high[1]) tmpSAR = max(extreme, tmp) extreme = low else if extreme > extreme[1] and facteur <0.2 then facteur = facteur+0.02 endif tmpSAR = tmpSAR[1]+facteur*(extreme-tmpSAR[1]) tmp = min(low,low[1]) tmpSAR = min(tmpSAR,tmp) endif else extreme = min( extreme[ 1 ], low ) if tmpSAR[1] <high then tendance = 1 facteur = 0.02 tmp = min(low,low[1]) tmpSAR = min(extreme,tmp) extreme = high else if extreme < extreme[1] and facteur <0.2 then facteur = facteur+0.02 endif tmpSAR = tmpSAR[1]+facteur*(extreme-tmpSAR[1]) tmp = max(high,high[1]) tmpSAR = max(tmpSAR,tmp) endif endif endif if tmpSAR>=tmpSAR[1] then col=1 else col=-1 endif return tmpSAR[1] coloured by col as "SAR"

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  REM SAR     if barindex < 2 then   facteur = 0.02 tmpSAR = low extreme = low tendance = 1   else if tendance[ 1 ] = 1 then extreme = max( extreme[ 1 ], high )   if tmpSAR[1] > low then tendance = -1 facteur = 0.02 tmp = max(high,high[1]) tmpSAR = max(extreme, tmp) extreme = low else if extreme > extreme[1] and facteur <0.2 then facteur = facteur+0.02 endif tmpSAR = tmpSAR[1]+facteur*(extreme-tmpSAR[1]) tmp = min(low,low[1]) tmpSAR = min(tmpSAR,tmp) endif else extreme = min( extreme[ 1 ], low )   if tmpSAR[1] <high then tendance = 1 facteur = 0.02 tmp = min(low,low[1]) tmpSAR = min(extreme,tmp) extreme = high else if extreme < extreme[1] and facteur <0.2 then facteur = facteur+0.02 endif tmpSAR = tmpSAR[1]+facteur*(extreme-tmpSAR[1]) tmp = max(high,high[1]) tmpSAR = max(tmpSAR,tmp) endif endif   endif if tmpSAR>=tmpSAR[1] then col=1 else col=-1 endif   return tmpSAR[1] coloured by col as "SAR"

   

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  bolsatrilera

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  07/07/2018 at 4:16 AM #75515
  Real Pro

  Thanks for sharing this.  I’m having difficulty when adjusting the 3 variables of initial, increment and limite.  I want the pSAR to be highly sensitive (ie. change from under to over at the slightest provocation), but it seems PRT has a lower limit on such a display.  Is this correct?  Is there a way to get around this limitation?  Regards.

  

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  07/08/2018 at 10:31 AM #75568
  Nicolas

  I’m not aware of any limitations. Did you try to adjust the increment and initial variables with lower values, and with 3 decimals?

  

  Nicolas

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  07/08/2018 at 10:37 AM #75570
  Real Pro

  Thank you, yes I tried adjusting them several times.  Someone explained to me that it’s possible PRT used a slightly different code for the SAR.  There are a few different ones around.  I’m trying to replicate what I have on another platform.  If I can get the code for it, I’m hoping you or someone else might be able to translate it for me.  Is there a place where I can request a translation please?

  

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  07/08/2018 at 1:52 PM #75584
  Nicolas

  If the code is not copyright protected, you can freely create a new topic following this procedure (for MT4 code conversion or any other trading platform):

  Free Conversion of MT4 Indicators (MQL4)

  

  Nicolas

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  07/11/2018 at 6:46 AM #75758
  Real Pro

  I’ve asked the author and he’s strict with sharing his work.  So I can’t do that.

  But I wonder if you’d help.  I’ve tried modifying both of the codes above to achieve a greater responsiveness (ie. a choppier pSAR) and can’t get that happening.

  

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  07/11/2018 at 8:58 AM #75765
  Nicolas

  Sure I could help, did you try the settings below?

   

  

  Nicolas

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  07/11/2018 at 9:15 AM #75769
  Real Pro

  Thanks.  Yes I tried the built in parameters, but I can’t get it responsive enough.  The change from above to below and vice versa take too long.  I need it much tighter to the price action.

  

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  07/11/2018 at 10:19 AM #75772
  Nicolas

  ok, but that’s already very fast with the settings I gave in the last post. Since I have no clue of what you expect to be more responsive, could you please share with me some screenshots of the other indicator you talked about? Thank you.

  

  Nicolas

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  07/11/2018 at 11:32 AM #75785
  Real Pro

  I just want it to be a bit faster, like so:

   

   

  

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  07/12/2018 at 9:15 AM #75846
  Nicolas

  A very different kind of SAR, a very different indicator. I’d like to help but it seems that is has been a lot customized in its code and how could we know what changed were made?

  

  Nicolas

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  07/23/2021 at 9:58 AM #174047
  rochnickols

  Please see in next post the code from the ‘SAR ATD’ indicator in French.
  Actually this indicator is not OK, because the SAR should not reverse if touched but not crossed at the close of the period.
  See this example were the SAR reverses whereas it should not.

  Can anyone help provide the right code modification to get this result?

  Best regards

  

  rochnickols

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