This indicator is a ported MQL5 indicators from http://www.mql5.com/en/code/1582
Formulas:
Ind[i] = sum of Range from (i-ChangesPeriod+1) to i, where
Range[i] = Price[i]-Price[i-1].
Min[i] - minimum value of Ind from (i-CheckPeriod) to (i-1).
Download:
The indicator was revised and updated