This is the Heiken Ashi indicator, based on the averaged Open, High, Low and Close prices, averaged using the Adaptive Moving Average (AMA).
The input parameters are the same as for AMA.
Translated from Russian by MetaQuotes Software Corp.
Original code: https://www.mql5.com/ru/code/150
This Expert Advisor uses the Index Moving Average indicator.Index Moving Average
The indicator shows the rate of change of the simple moving average.