Codificare questo indicatore

• 11/13/2021 at 2:21 PM #181535
  m3rc76

  Secondo voi è possibile codificare questo indicatore da trading view?

  //@version=4
  study(title=”Rolling Moving Average”, shorttitle=”MA_rolling”, overlay=true)
  len = input(9, minval=1, title=”Length”)
  src = input(close, title=”Source”)
  ma_type = input(options=[“SMA”,”EMA”], defval=”SMA”, title=”type”)

  roll_sma(x, y) =>
  sum = 0.0
  for i = 0 to y – 1
  sum := sum + x[i] / y
  sum

  roll_ema(x, y) =>
  alpha = 2 / (y + 1)
  sum = 0.0
  sum := alpha * x + (1 – alpha) * nz(sum[1])

  var roll_sma_len = 0

  roll_sma_len := roll_sma_len + 1

  out1 = ma_type==”SMA” ? sma(src,len) : ema(src,len)
  out2 = ma_type==”SMA” ? roll_sma(src,roll_sma_len) : roll_ema(src,roll_sma_len)

  out = bar_index+1 <= len ? out2 : out1 plot(out, color=#00FF00, title="MA")

  

  m3rc76

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  11/15/2021 at 11:37 PM #181661
  robertogozzi

  E’ identico ad una SMA o EMA, cambia qualcosa solo per i primi periodi iniziali:

  ONCE Periods = 9 //9 periods ONCE MaType = 0 //0=SMA, 1=EMA ONCE N = Periods src = CustomClose N = N + 1 IF MaType = 0 THEN Out1 = average[Periods,0](src) Out2 = 0 FOR i = 0 TO N- 1 Out2 = (Out2 + src[i]) / N NEXT ELSIF MaType = 1 THEN Out1 = average[Periods,1](src) Out2 = 0 alpha = 2 / (N + 1) Out2 = (alpha * src) + ((1 - alpha) * Out2[1]) ENDIF IF BarIndex <= Periods THEN OutX = Out2 ELSE OutX = Out1 ENDIF RETURN OutX AS "Rolling Moving Average"

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  ONCE Periods = 9                //9  periods ONCE MaType  = 0                //0=SMA,  1=EMA ONCE N       = Periods src          = CustomClose N            = N + 1 IF MaType = 0 THEN    Out1 = average[Periods,0](src)    Out2 = 0    FOR i = 0 TO N- 1       Out2 = (Out2 + src[i]) / N    NEXT ELSIF MaType = 1 THEN    Out1  = average[Periods,1](src)    Out2  = 0    alpha = 2 / (N + 1)    Out2  = (alpha * src) + ((1 - alpha) * Out2[1]) ENDIF IF BarIndex <= Periods THEN    OutX = Out2 ELSE    OutX = Out1 ENDIF RETURN OutX AS "Rolling Moving Average"

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  m3rc76

  

  robertogozzi

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