STC Indicator – de trading view

• 03/26/2023 at 8:32 AM #212122
  NathanC

  Bonjour, j’essaye de convertir un code trading view :

  //@version=5 //[SHK] STC colored indicator //https://www.tradingview.com/u/shayankm/ indicator(title='[SHK] Schaff Trend Cycle (STC)', shorttitle='STC', overlay=false) EEEEEE = input(12, 'Length') BBBB = input(26, 'FastLength') BBBBB = input(50, 'SlowLength') AAAA(BBB, BBBB, BBBBB) => fastMA = ta.ema(BBB, BBBB) slowMA = ta.ema(BBB, BBBBB) AAAA = fastMA - slowMA AAAA AAAAA(EEEEEE, BBBB, BBBBB) => AAA = input(0.5) var CCCCC = 0.0 var DDD = 0.0 var DDDDDD = 0.0 var EEEEE = 0.0 BBBBBB = AAAA(close, BBBB, BBBBB) CCC = ta.lowest(BBBBBB, EEEEEE) CCCC = ta.highest(BBBBBB, EEEEEE) - CCC CCCCC := CCCC > 0 ? (BBBBBB - CCC) / CCCC * 100 : nz(CCCCC[1]) DDD := na(DDD[1]) ? CCCCC : DDD[1] + AAA * (CCCCC - DDD[1]) DDDD = ta.lowest(DDD, EEEEEE) DDDDD = ta.highest(DDD, EEEEEE) - DDDD DDDDDD := DDDDD > 0 ? (DDD - DDDD) / DDDDD * 100 : nz(DDDDDD[1]) EEEEE := na(EEEEE[1]) ? DDDDDD : EEEEE[1] + AAA * (DDDDDD - EEEEE[1]) EEEEE mAAAAA = AAAAA(EEEEEE, BBBB, BBBBB) mColor = mAAAAA > mAAAAA[1] ? color.new(color.green, 20) : color.new(color.red, 20) if mAAAAA[3] <= mAAAAA[2] and mAAAAA[2] > mAAAAA[1] and mAAAAA > 75 alert("Red", alert.freq_once_per_bar) if mAAAAA[3] >= mAAAAA[2] and mAAAAA[2] < mAAAAA[1] and mAAAAA < 25 alert("Green", alert.freq_once_per_bar) plot(mAAAAA, color=mColor, title='STC', linewidth=2) ul = plot(25, color=color.new(color.gray, 70)) ll = plot(75, color=color.new(color.gray, 70)) fill(ul, ll, color=color.new(color.gray, 96))

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  //@version=5 //[SHK] STC colored indicator //https://www.tradingview.com/u/shayankm/   indicator(title='[SHK] Schaff Trend Cycle (STC)', shorttitle='STC', overlay=false) EEEEEE = input(12, 'Length') BBBB = input(26, 'FastLength') BBBBB = input(50, 'SlowLength')   AAAA(BBB, BBBB, BBBBB) =>     fastMA = ta.ema(BBB, BBBB)     slowMA = ta.ema(BBB, BBBBB)     AAAA = fastMA - slowMA     AAAA   AAAAA(EEEEEE, BBBB, BBBBB) =>     AAA = input(0.5)     var CCCCC = 0.0     var DDD = 0.0     var DDDDDD = 0.0     var EEEEE = 0.0     BBBBBB = AAAA(close, BBBB, BBBBB)     CCC = ta.lowest(BBBBBB, EEEEEE)     CCCC = ta.highest(BBBBBB, EEEEEE) - CCC     CCCCC := CCCC > 0 ? (BBBBBB - CCC) / CCCC * 100 : nz(CCCCC[1])     DDD := na(DDD[1]) ? CCCCC : DDD[1] + AAA * (CCCCC - DDD[1])     DDDD = ta.lowest(DDD, EEEEEE)     DDDDD = ta.highest(DDD, EEEEEE) - DDDD     DDDDDD := DDDDD > 0 ? (DDD - DDDD) / DDDDD * 100 : nz(DDDDDD[1])     EEEEE := na(EEEEE[1]) ? DDDDDD : EEEEE[1] + AAA * (DDDDDD - EEEEE[1])     EEEEE   mAAAAA = AAAAA(EEEEEE, BBBB, BBBBB) mColor = mAAAAA > mAAAAA[1] ? color.new(color.green, 20) : color.new(color.red, 20)       if mAAAAA[3] <= mAAAAA[2] and mAAAAA[2] > mAAAAA[1] and mAAAAA > 75     alert("Red", alert.freq_once_per_bar) if mAAAAA[3] >= mAAAAA[2] and mAAAAA[2] < mAAAAA[1] and mAAAAA < 25     alert("Green", alert.freq_once_per_bar)     plot(mAAAAA, color=mColor, title='STC', linewidth=2)   ul = plot(25, color=color.new(color.gray, 70)) ll = plot(75, color=color.new(color.gray, 70)) fill(ul, ll, color=color.new(color.gray, 96))

  Pour la 2eme fonction j’ai :

  // function_SchaffTrendCycle // Inputs Length = 12 FastLength = 26 SlowLength = 50 // Schaff Trend Cycle calculation AAA = 0.5 MACDD = CALL "function_MACD_Difference"[FastLength, SlowLength] CCC = Lowest[Length](MACDD) CCCC = Highest[Length](MACDD) - CCC CCCCC = 0 IF CCCC > 0 THEN CCCCC = (MACDD - CCC) / CCCC * 100 ELSif CCCCC[1] = undefined then CCCCC = 0 else CCCCC =CCCCC[1] ENDIF DDD = 0 IF DDD[1] = 0 THEN DDD = AAA * CCCCC ELSE DDD = DDD[1] + AAA * (CCCCC - DDD[1]) ENDIF DDDD = Lowest[Length](DDD) DDDDD = Highest[Length](DDD) - DDDD DDDDDD = 0 IF DDDDD > 0 THEN DDDDDD = (DDD - DDDD) / DDDDD * 100 elsif DDDDDD[1]= undefined then DDDDDD = 0 ELSE DDDDDD = DDDDDD[1] ENDIF EEEEE = 0 IF EEEEE[1] = 0 THEN EEEEE = AAA * DDDDDD ELSE EEEEE = EEEEE[1] + AAA * (DDDDDD - EEEEE[1]) ENDIF RETURN EEEEE

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  // function_SchaffTrendCycle // Inputs Length = 12 FastLength = 26 SlowLength = 50   // Schaff Trend Cycle calculation AAA = 0.5 MACDD = CALL "function_MACD_Difference"[FastLength, SlowLength] CCC = Lowest[Length](MACDD) CCCC = Highest[Length](MACDD) - CCC   CCCCC = 0 IF CCCC > 0 THEN CCCCC = (MACDD - CCC) / CCCC * 100 ELSif CCCCC[1] = undefined then CCCCC = 0 else CCCCC =CCCCC[1] ENDIF   DDD = 0 IF DDD[1] = 0 THEN DDD = AAA * CCCCC ELSE DDD = DDD[1] + AAA * (CCCCC - DDD[1]) ENDIF   DDDD = Lowest[Length](DDD) DDDDD = Highest[Length](DDD) - DDDD   DDDDDD = 0 IF DDDDD > 0 THEN DDDDDD = (DDD - DDDD) / DDDDD * 100 elsif DDDDDD[1]= undefined then DDDDDD = 0 ELSE DDDDDD = DDDDDD[1] ENDIF   EEEEE = 0 IF EEEEE[1] = 0 THEN EEEEE = AAA * DDDDDD ELSE EEEEE = EEEEE[1] + AAA * (DDDDDD - EEEEE[1]) ENDIF   RETURN EEEEE

  Je pense qu’il y a un problème au niveau des fonctions undefined, (nz) sur le pine script) , je ne sais pas comment faire, des idées ?

  

  NathanC

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  03/26/2023 at 7:26 PM #212162
  NathanC

  Bonjour besoin d’aide pour convertir ce code, les “nz” me poses vraiment des problèmes !

  //@version=5
  //[SHK] STC colored indicator
  //https://www.tradingview.com/u/shayankm/

  indicator(title='[SHK] Schaff Trend Cycle (STC)’, shorttitle=’STC’, overlay=false)
  EEEEEE = input(12, ‘Length’)
  BBBB = input(26, ‘FastLength’)
  BBBBB = input(50, ‘SlowLength’)

  AAAA(BBB, BBBB, BBBBB) =>
  fastMA = ta.ema(BBB, BBBB)
  slowMA = ta.ema(BBB, BBBBB)
  AAAA = fastMA – slowMA
  AAAA

  AAAAA(EEEEEE, BBBB, BBBBB) =>
  AAA = input(0.5)
  var CCCCC = 0.0
  var DDD = 0.0
  var DDDDDD = 0.0
  var EEEEE = 0.0
  BBBBBB = AAAA(close, BBBB, BBBBB)
  CCC = ta.lowest(BBBBBB, EEEEEE)
  CCCC = ta.highest(BBBBBB, EEEEEE) – CCC
  CCCCC := CCCC > 0 ? (BBBBBB – CCC) / CCCC * 100 : nz(CCCCC[1])
  DDD := na(DDD[1]) ? CCCCC : DDD[1] + AAA * (CCCCC – DDD[1])
  DDDD = ta.lowest(DDD, EEEEEE)
  DDDDD = ta.highest(DDD, EEEEEE) – DDDD
  DDDDDD := DDDDD > 0 ? (DDD – DDDD) / DDDDD * 100 : nz(DDDDDD[1])
  EEEEE := na(EEEEE[1]) ? DDDDDD : EEEEE[1] + AAA * (DDDDDD – EEEEE[1])
  EEEEE

  mAAAAA = AAAAA(EEEEEE, BBBB, BBBBB)
  mColor = mAAAAA > mAAAAA[1] ? color.new(color.green, 20) : color.new(color.red, 20)

  if mAAAAA[3] <= mAAAAA[2] and mAAAAA[2] > mAAAAA[1] and mAAAAA > 75
  alert(“Red”, alert.freq_once_per_bar)
  if mAAAAA[3] >= mAAAAA[2] and mAAAAA[2] < mAAAAA[1] and mAAAAA < 25
  alert(“Green”, alert.freq_once_per_bar)

  plot(mAAAAA, color=mColor, title=’STC’, linewidth=2)

  ul = plot(25, color=color.new(color.gray, 70))
  ll = plot(75, color=color.new(color.gray, 70))
  fill(ul, ll, color=color.new(color.gray, 96))

  

  NathanC

  Participant

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  03/27/2023 at 10:05 AM #212178
  Nicolas

  Il n’y a pas d’équivalent “NZ” chez nous, c’est utile pour vérifier si une valeur est nulle ou non. Souvent, c’est un excés de zèle dans les codes TV, car pas forcément utile. Cependant, on peut le coder comme ceci en langage ProRealTime:

  if var = 0 then //NZ else //PAS NZ endif

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  if var = 0 then //NZ else //PAS NZ endif

  Par ailleurs, tu utilises mal UNDEFINED, qui n’a rien à avoir avec le NZ de TV. Il est utile uniquement pour mettre à null une variable (une seule fois seulement), pour qu’elle ne soit pas égale à 0 dés le départ, puisqu’on ne déclare pas les variables en ProBuilder.

  Si tu cherches, le Schaff Trend Cycle, il est déjà présent ici:

  https://www.prorealcode.com/prorealtime-indicators/schaff-trend-cycle2/

  et là

  https://www.prorealcode.com/prorealtime-indicators/schaff-trend-cycle/

  

  Nicolas

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  03/30/2023 at 10:51 PM #212586
  NathanC

  Merci pour l’info, si un calcul fait genre un diviser par 0, ca retroune 0 ou  autre ?

  Merci pour les liens, j’avais mal cherché … :/

  

  NathanC

  Participant

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  03/31/2023 at 9:12 AM #212593
  Nicolas

  ça retourne n/a, pas un gros problème pour un indicateur, il continuera à s’afficher et faire ses calculs, mais pour une stratégie ça l’arrêtera.

  test:

  return rsi[14]/0

  1	return rsi[14]/0

   

  

  Nicolas

  Keymaster

  Topics: 81

  Replies: 20866

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