The channel based on ATR (Average True Range) technical indicator deviations from the moving average.
This indicator was first implemented in MQL4 and published in CodeBase at mql4.com 25.01.2008.
Translated from Russian by MetaQuotes Software Corp.
Original code: https://www.mql5.com/ru/code/766
Two rectilinear channels of standard deviations + curvelinear channel of the parabolic regression with interpolation of a price chart future values.JBrainTrendSig1
Signal indicator of the popular BrainTrend1 trading system with preliminary price timeseries smoothing.