This indicator is a ported MQL5 indicator from http://www.mql5.com/ru/code/1729 (in Russian).
Formulas:
MA[i] = Price[i] - Moving average[i],
Upper band, Lower band - range of bollinger bands.
Download:
For this indicator must be installed Averages indicator (viewtopic.php?f=17&t=2430).
The indicator was revised and updated