"ProjectionBands" (Financial Indicator)
Sometimes abbreviated as PJB. Is a statistical indicator. Was developed by Mel Widner. Is computed using the high and low prices. Returns two time series, the n-period highs and lows projected forward using linear trendlines for the highs and lows.
FinancialIndicator["ProjectionOscillator",n] uses n-period highs and lows. The first value occurs after n periods.