Indicator Advanced Fractal Envelopes builds two envelopes on the mean prices of the pre-defined number of upper and lower fractals and the central line.

It has three adjustable parameters:

  • Average - number of fractals to build a moving average on their prices
  • Show central line - show the central line
  • Show fractals - show the fractals

Calculations:

Top     = AvgFractUp
Bottom  = AvgFractDn
Central = (AvgFractUp + AvgFractDn) / 2.0

where:

AvgFractUp = SMA(SumAvgUp, Average)
AvgFractDn = SMA(SumAvgDn, Average)

SumAvgUp - sum of the prices of upper fractals within the Average number
SumAvgDn - sum of the prices of lower fractals within the Average number