Originally this indicator has been written in MQL4 and was first published in the Code Base at mql4.com on 11.10.2007.
Figure 1. The Impulse indicator
Translated from Russian by MetaQuotes Software Corp.
Original code: https://www.mql5.com/ru/code/2108
The ROC indicator smoothed by Laguerre filter drawn as a color histogram.XChannel
A channel build on the values of two moving averages of High and Low, drawn as a cloud.