Source: https://fxcodebase.com/code/viewtopic.php?f=17&t=7884
Forum: 17 · Topic 7884 · 2 post(s)
Alexander.Gettinger · Mon Nov 07, 2011 10:48 am
This indicator is a ported MQL5 indicator from http://www.mql5.com/en/code/495#
Formulas: ATR ratio=ATR(Short period)/ATR(Long period).

Download:
The indicator was revised and updated
Apprentice · Sun Mar 19, 2017 10:42 am
Indicator was revised and updated.