A trendless indicator (oscillator).
Originally this indicator has been written in MQL4 and was first published in the Code Base on 20.02.2012.
Fig.1. The TrendlessAG indicator
Translated from Russian by MetaQuotes Software Corp.
Original code: https://www.mql5.com/ru/code/12535
The Trinity-Impulse indicator with the timeframe selection option available in the input parameters.RangeExpansionIndex_HTF
Range Expansion Index (REI) is a relative oscillator with the timeframe selection option available in the input parameters.