Trend Duraration Forecast Indicator – Conversion

• 11/22/2025 at 11:57 AM #253875
  adeelq79

  Him this looks like a simple but interesting indicator. Please can someone convert it?

  https://www.tradingview.com/script/L3SJFfAQ-Trend-Duration-Forecast-ChartPrime/

  

  adeelq79

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  11/22/2025 at 6:33 PM #253889
  jacquesgermain

  hello :

  // ======================================================================
  // TREND DURATION FORECAST — PROREALTIME
  /// ======================================================================
  // ———- PARAMÈTRES ———-
  length = 50
  trendLength = 3
  samples = 10
  offset=0.8
  // ———- VARIABLES ———-
  ONCE trend = 0
  ONCE trendCount = 0
  ONCE prevTrend = 0
  ONCE lastTrendDuration = 0
  ONCE showLastTrendText = 0

  // Historique UP
  ONCE bull1 = 0
  ONCE bull2 = 0
  ONCE bull3 = 0
  ONCE bull4 = 0
  ONCE bull5 = 0
  ONCE bull6 = 0
  ONCE bull7 = 0
  ONCE bull8 = 0
  ONCE bull9 = 0
  ONCE bull10 = 0

  // Historique DOWN
  ONCE bear1 = 0
  ONCE bear2 = 0
  ONCE bear3 = 0
  ONCE bear4 = 0
  ONCE bear5 = 0
  ONCE bear6 = 0
  ONCE bear7 = 0
  ONCE bear8 = 0
  ONCE bear9 = 0
  ONCE bear10 = 0

  ONCE bullIndex = 1
  ONCE bearIndex = 1

  // ======================================================================
  // CALCUL HMA
  // ======================================================================

  hmabase = close

  halfLength = FLOOR(length / 2)
  IF halfLength < 1 THEN
  halfLength = 1
  ENDIF

  sqrtLength = FLOOR(POW(length, 0.5))
  IF sqrtLength < 1 THEN
  sqrtLength = 1
  ENDIF

  wma1 = WeightedAverage[halfLength](hmabase)
  wma2 = WeightedAverage[length](hmabase)

  tempHma = 2 * wma1 – wma2
  hma = WeightedAverage[sqrtLength](tempHma)

  // ======================================================================
  // DÉTECTION DU TREND
  // ======================================================================

  trendUp = 0
  trendDown = 0

  IF hma > hma[trendLength] THEN
  trendUp = 1
  ELSIF hma < hma[trendLength] THEN
  trendDown = 1
  ENDIF

  IF trendUp = 1 THEN
  newTrend = 1
  ELSIF trendDown = 1 THEN
  newTrend = -1
  ELSE
  newTrend = trend
  ENDIF

  // ======================================================================
  // CHANGEMENT DE TREND ET HISTORIQUE
  // ======================================================================

  IF newTrend <> trend THEN

  // sauvegarde durée et ancienne tendance
  lastTrendDuration = trendCount
  prevTrend = trend
  showLastTrendText = 1

  // Sauvegarde dans historique UP
  IF trend = 1 THEN
  IF bullIndex = 1 THEN
  bull1 = trendCount
  ELSIF bullIndex = 2 THEN
  bull2 = trendCount
  ELSIF bullIndex = 3 THEN
  bull3 = trendCount
  ELSIF bullIndex = 4 THEN
  bull4 = trendCount
  ELSIF bullIndex = 5 THEN
  bull5 = trendCount
  ELSIF bullIndex = 6 THEN
  bull6 = trendCount
  ELSIF bullIndex = 7 THEN
  bull7 = trendCount
  ELSIF bullIndex = 8 THEN
  bull8 = trendCount
  ELSIF bullIndex = 9 THEN
  bull9 = trendCount
  ELSIF bullIndex = 10 THEN
  bull10 = trendCount
  ENDIF
  bullIndex = bullIndex + 1
  IF bullIndex > samples THEN
  bullIndex = 1
  ENDIF

  // Sauvegarde dans historique DOWN
  ELSIF trend = -1 THEN
  IF bearIndex = 1 THEN
  bear1 = trendCount
  ELSIF bearIndex = 2 THEN
  bear2 = trendCount
  ELSIF bearIndex = 3 THEN
  bear3 = trendCount
  ELSIF bearIndex = 4 THEN
  bear4 = trendCount
  ELSIF bearIndex = 5 THEN
  bear5 = trendCount
  ELSIF bearIndex = 6 THEN
  bear6 = trendCount
  ELSIF bearIndex = 7 THEN
  bear7 = trendCount
  ELSIF bearIndex = 8 THEN
  bear8 = trendCount
  ELSIF bearIndex = 9 THEN
  bear9 = trendCount
  ELSIF bearIndex = 10 THEN
  bear10 = trendCount
  ENDIF
  bearIndex = bearIndex + 1
  IF bearIndex > samples THEN
  bearIndex = 1
  ENDIF
  ENDIF

  // reset compteur pour nouvelle tendance
  trendCount = 0
  trend = newTrend
  ENDIF

  // ======================================================================
  // INCRÉMENTATION DUREE
  // ======================================================================

  trendCount = trendCount + 1

  // ======================================================================
  // CALCUL MOYENNES
  // ======================================================================

  bullAvg = (bull1 + bull2 + bull3 + bull4 + bull5 + bull6 + bull7 + bull8 + bull9 + bull10) / samples
  bearAvg = (bear1 + bear2 + bear3 + bear4 + bear5 + bear6 + bear7 + bear8 + bear9 + bear10) / samples

  // ======================================================================
  // TEXTE SUR DERNIÈRE BOUGIE DE TENDANCE TERMINÉE
  // ======================================================================

  IF showLastTrendText = 1 THEN
  IF prevTrend = 1 THEN
  cc=round(bullAvg)
  DRAWTEXT(“▲ sur #lastTrendDuration#j moy: #cc#”, barindex, hma+0.8) coloured(“green”)
  ELSIF prevTrend = -1 THEN
  cd=round(bullAvg)
  DRAWTEXT(“▼ sur #lastTrendDuration#j moy: #cd#”, barindex,hma-0.8) coloured(“red”)
  ENDIF
  showLastTrendText = 0
  ENDIF

  // ======================================================================
  // TEXTE DURÉE EN COURS (toutes les bougies de la tendance actuelle, décalé)
  // ======================================================================
  IF ISLASTBARUPDATE then
  IF trend = 1 THEN
  ca=round(bullAvg)
  DRAWTEXT(“▲ dur en cours: #trendCount#j probable: #ca#”, barindex,hma+0.8) coloured(“blue”)
  ELSIF trend = -1 THEN
  cb=round(bearAvg)
  DRAWTEXT(“▼ dur en cours: #trendCount#j probable: #cb#”, barindex, hma-0.8)coloured(“violet”)
  ENDIF
  endif
  currentDuration = trendCount

  IF trend = 1 THEN
  avgDuration = bullAvg
  ELSE
  avgDuration = bearAvg
  ENDIF

  RETURN hma AS “hma”

  2 users thanked author for this post.

  robertogozzi, Iván

  

  jacquesgermain

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  11/22/2025 at 7:13 PM #253890
  jacquesgermain

  correction cd=round(bearAvg)

  

  jacquesgermain

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  11/22/2025 at 8:28 PM #253891
  adeelq79

  thank you for the quick reply !

  

  adeelq79

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