Library "FibRatios"
Library with calculation logic for fib retracement, extension and ratios

retracement(a, b, ratio, logScale, precision)
  Calculates the retracement for points a, b with given ratio and scale
  Parameters:
    a: Starting point a
    b: Second point b
    ratio: Ratio for which we need to calculate retracement c
    logScale: Flag to get calculations in log scale. Default is false
    precision: rounding precision. If set to netagive number, round_to_mintick is applied. Default is -1
  Returns: retracement point c for points a,b with given ratio and scale

retracementRatio(a, b, c, logScale, precision)
  Calculates the retracement ratio for points a, b, c with given scale
  Parameters:
    a: Starting point a
    b: Second point b
    c: Retracement point. c should be placed between a and b
    logScale: Flag to get calculations in log scale. Default is false
    precision: rounding precision. If set to netagive number, round_to_mintick is applied. Default is 3
  Returns: retracement ratio for points a,b,c on given scale

extension(a, b, c, ratio, logScale, precision)
  Calculates the extensions for points a, b, c with given ratio and scale
  Parameters:
    a: Starting point a
    b: Second point b
    c: Retracement point. c should be placed between a and b
    ratio: Ratio for which we need to calculate extension d
    logScale: Flag to get calculations in log scale. Default is false
    precision: rounding precision. If set to netagive number, round_to_mintick is applied. Default is -1
  Returns: extensoin point d for points a,b,c with given ratio and scale

extensionRatio(a, b, c, d, logScale, precision)
  Calculates the extension ratio for points a, b, c, d with given scale
  Parameters:
    a: Starting point a
    b: Second point b
    c: Retracement point. c should be placed between a and b
    d: Extension point. d should be placed beyond a, c. But, can be with b,c or beyond b
    logScale: Flag to get calculations in log scale. Default is false
    precision: rounding precision. If set to netagive number, round_to_mintick is applied. Default is 3
  Returns: extension ratio for points a,b,c,d on given scale

Pine library

In true TradingView spirit, the author has published this Pine code as an open-source library so that other Pine programmers from our community can reuse it. Cheers to the author! You may use this library privately or in other open-source publications, but reuse of this code in a publication is governed by House Rules.

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