Original LUA indicator: http://fxcodebase.com/code/viewtopic.php?f=17&t=51747.
Formulas:
C[i] = (Close[i]-MA)/ATR,
H[i] = (High[i]-MA)/ATR,
L[i] = (Low[i]-MA)/ATR,
O[i] = (Open[i]-MA)/ATR, where
MA = Moving average(Median Price, Length, Method),
ATR = Average True Range(Length).
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