Original LUA oscillator: viewtopic.php?f=17&t=19120.
Formulas:
II = 100*Avg/AvgVol,
Signal = MVA(II) with [Smoothing_Length] number of periods, where
Avg = MVA(Volume*(2*Close-High-Low)/(High-Low)) with [Length] number of periods,
AvgVol = MVA(Volume) with [Length] number of periods.
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