This indicator is a ported MQL5 indicator from http://www.mql5.com/en/code/1784.
Formulas:
High[i] = Max(X_H, Open[i-1], Close[i-1]),
Low[i] = Min(X_L, Open[i-1], Close[i-1]),
Open[i] = (Open[i-1]+Close[i-1])/2,
Close[i] = (X_O+X_H+X_L+X_C)/4, where
X_O = 2*MA(Open, Period/2)-MA(Open, Period),
X_H = 2*MA(High, Period/2)-MA(High, Period),
X_L = 2*MA(Low, Period/2)-MA(Low, Period),
X_C = 2*MA(Close, Period/2)-MA(Close, Period).
Download:
For this indicator must be installed Averages indicator (viewtopic.php?f=17&t=2430).