Formulas:
If Williams %R (WPR_Period) > WPR_Level And Williams %R > MA(MA_Method, MA_Period) of Williams % R = Trend Up
If Williams %R > WPR_Level And Williams %R < MA of Williams % R = Up
If Williams %R < WPR_Level And Williams %R < MA of Williams % R = Trend Down
If Williams %R < WPR_Level And Williams %R > MA of Williams % R = Down
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