Periodic ChannelThis indicator try to create a channel by summing a re-scaled and readapted sinusoidal wave form to the price mean.
The  length  parameter control the speed of the sinusoidal wave form, this parameter is not converted to a sine wave  period  for allowing a better estimation, higher length's work better but feel free to try shorter periods.
The  invert  parameter invert the sinusoidal wave.
Each bands represent possible return points, the higher the band the higher the probability.
  
 Inverted sin wave exemple 
The performance of the indicator is subjective to the main estimation (blue line), select the parameter that best fit the blue line to the price.
Best ragards 
