Algo Alpha Range Filterd Trend Signals – Conversion Required

• 06/12/2025 at 9:08 PM #248237
  adeelq79

  Hi all,

  Please can someone help to convert the following indicator from Algo Alpha:

  Range Filtered Trend Signals [AlgoAlpha] — Indicator by AlgoAlpha — TradingView

  

  adeelq79

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  06/16/2025 at 4:36 PM #248305
  Iván

  Hi, here you have:

  //-----------------------------------------------------// //PRC_Range Filtered Trend Signals | indicator //16.06.2025 //Iván González @ www.prorealcode.com //Sharing ProRealTime knowledge //translated from tradingview code //-----------------------------------------------------// // --- Parámetros de Entrada --- //-----------------------------------------------------// // Grupo Filtro Kalman kalmanAlpha = 0.01 kalmanBeta = 0.1 kalmanPeriod = 77 dev = 1.2 // Grupo Supertrend supertrendFactor = 0.7 supertrendAtrPeriod = 7 //-----------------------------------------------------// // --- Lógica del Filtro Kalman --- //-----------------------------------------------------// ONCE v2 = 1.0 IF BarIndex <= 1 THEN v1 = close[1] else v3 = kalmanAlpha * kalmanPeriod v5 = v1 v4 = v2 / (v2 + v3) v1 = v5 + v4 * (close - v5) v2 = (1 - v4) * v2 + kalmanBeta / kalmanPeriod ENDIF k = v1 // Línea del Filtro Kalman //-----------------------------------------------------// // --- Lógica del Supertrend --- //-----------------------------------------------------// src=k atr=averagetruerange[supertrendAtrPeriod] upperband=src+supertrendFactor*atr lowerband=src-supertrendFactor*atr if barindex<=supertrendAtrPeriod then upperband=src lowerband=src direction=1 isupertrend=src else if lowerband>lowerband[1] or k[1]<lowerband[1] then lowerband=lowerband else lowerband=lowerband[1] endif if upperband<upperband[1] or k[1]>upperband[1] then upperband=upperband else upperband=upperband[1] endif if isupertrend[1]=upperband[1] then if k>upperband then direction=-1 else direction=1 endif else if k<lowerband then direction=1 else direction=-1 endif endif if direction=-1 then isupertrend=lowerband else isupertrend=upperband endif endif //-----------------------------------------------------// // --- Lógica Principal del Indicador --- //-----------------------------------------------------// vola = WeightedAverage[200](high - low) // Bandas del Filtro de Rango upper = k + vola * dev lower = k - vola * dev midbody = (close + open) / 2 //-----------------------------------------------------// // --- Visualización y Dibujo --- //-----------------------------------------------------// rk=124 gk=124 bk=124 ak=255 if close crosses over upper and isupertrend=isupertrend[1] then r=124 g=124 b=124 a1=255 a2=255 inrange=1 elsif close crosses under lower and isupertrend=isupertrend[1] then r=124 g=124 b=124 a1=255 a2=255 inrange=1 elsif isupertrend<>isupertrend[1] and k<isupertrend then r=255 g=0 b=0 a1=255 a2=0 inrange=0 elsif isupertrend<>isupertrend[1] and k>isupertrend then r=0 g=255 b=0 a1=0 a2=255 inrange=0 endif if inrange=1 then ak=0 endif //-----------------------------------------------------// colorbetween(k,midbody,r,g,b,ak*0.1) colorbetween(lower,upper,124,124,124,30*inrange) //-----------------------------------------------------// return k as "K" style(line,3)coloured(rk,gk,bk,ak), upper as "Upper" coloured(r,g,b,a1)style(point,2), lower as "Lower" coloured(r,g,b,a2)style(point,2)

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  //-----------------------------------------------------// //PRC_Range Filtered Trend Signals | indicator //16.06.2025 //Iván González @ www.prorealcode.com //Sharing ProRealTime knowledge //translated from tradingview code //-----------------------------------------------------// // --- Parámetros de Entrada --- //-----------------------------------------------------// // Grupo Filtro Kalman kalmanAlpha = 0.01 kalmanBeta = 0.1 kalmanPeriod = 77 dev = 1.2 // Grupo Supertrend supertrendFactor = 0.7 supertrendAtrPeriod = 7 //-----------------------------------------------------// // --- Lógica del Filtro Kalman --- //-----------------------------------------------------// ONCE v2 = 1.0 IF BarIndex <= 1 THEN v1 = close[1] else v3 = kalmanAlpha * kalmanPeriod v5 = v1 v4 = v2 / (v2 + v3) v1 = v5 + v4 * (close - v5) v2 = (1 - v4) * v2 + kalmanBeta / kalmanPeriod ENDIF k = v1 // Línea del Filtro Kalman //-----------------------------------------------------// // --- Lógica del Supertrend --- //-----------------------------------------------------// src=k atr=averagetruerange[supertrendAtrPeriod]   upperband=src+supertrendFactor*atr lowerband=src-supertrendFactor*atr   if barindex<=supertrendAtrPeriod then   upperband=src lowerband=src direction=1 isupertrend=src   else   if lowerband>lowerband[1] or k[1]<lowerband[1] then lowerband=lowerband else lowerband=lowerband[1] endif   if upperband<upperband[1] or k[1]>upperband[1] then upperband=upperband else upperband=upperband[1] endif   if isupertrend[1]=upperband[1] then if k>upperband then direction=-1 else direction=1 endif else if k<lowerband then direction=1 else direction=-1 endif endif   if direction=-1 then isupertrend=lowerband else isupertrend=upperband endif   endif //-----------------------------------------------------// // --- Lógica Principal del Indicador --- //-----------------------------------------------------// vola = WeightedAverage[200](high - low)   // Bandas del Filtro de Rango upper = k + vola * dev lower = k - vola * dev   midbody = (close + open) / 2 //-----------------------------------------------------// // --- Visualización y Dibujo --- //-----------------------------------------------------// rk=124 gk=124 bk=124 ak=255   if close crosses over upper and isupertrend=isupertrend[1] then r=124 g=124 b=124 a1=255 a2=255 inrange=1 elsif close crosses under lower and isupertrend=isupertrend[1] then r=124 g=124 b=124 a1=255 a2=255 inrange=1 elsif isupertrend<>isupertrend[1] and k<isupertrend then r=255 g=0 b=0 a1=255 a2=0 inrange=0 elsif isupertrend<>isupertrend[1] and k>isupertrend then r=0 g=255 b=0 a1=0 a2=255 inrange=0 endif if inrange=1 then ak=0 endif //-----------------------------------------------------// colorbetween(k,midbody,r,g,b,ak*0.1) colorbetween(lower,upper,124,124,124,30*inrange) //-----------------------------------------------------// return k as "K" style(line,3)coloured(rk,gk,bk,ak), upper as "Upper" coloured(r,g,b,a1)style(point,2), lower as "Lower" coloured(r,g,b,a2)style(point,2)

  

  Iván

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  06/19/2025 at 10:56 PM #248419
  adeelq79

  Thank you kindly Ivan.

  

  adeelq79

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