Real author:
FX5
The WPR oscillator with the boundaries of the overbought/oversold areas in the form of Bollinger Bands.
Indicator input parameters:
input uint Length=12; // WPR period input double BandsDeviation=2.0; // Deviation input bool MA_Method=true; // Use smoothing for Bollinger Bands input int Shift=0; // Horizontal indicator shift in bars

Fig.1. The FX5_SelfAdjustingWPR indicator