The Voss Predictive Filter by John Ehlers is a new filter indicator that could help signal cyclical turning points in markets. As described by the author, the filter has a negative group delay and while an indicator based on it cannot actually see into the future, it may provide the trader with signals in advance of other indicators.
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//PRC_Voss Predictive Filter (VPF) | indicator //14.10.2019 //Nicolas @ www.prorealcode.com //Sharing ProRealTime knowledge // --- settings Period=20 Predict=3 Bandwidth=0.25 // --- end of settings if barindex>Period then Order = 3*Predict F1 = Cos(360 / Period) G1 = Cos(Bandwidth*360 / Period) S1 = 1 / G1 - Sqrt( 1 / (G1*G1) - 1) //Band Limit the input data with a wide band BandPass Filter Filt = .5*(1 - S1)*(Close - Close[2]) + F1*(1 + S1)*Filt[1] - S1*Filt[2] If barindex <= 5 Then Filt = 0 endif //Compute Voss predictor SumC = 0 For count = 0 to Order - 1 do SumC = SumC + ((count + 1) / Order)*Voss[Order - count] next Voss = ((3 + Order) / 2)*Filt - SumC endif return Filt coloured(255,0,0),Voss coloured(30,144,255) |
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Thank you for your indicators.
As always it’s perfect, I thank you for your help it’s precious.
Best regards.