The MACD histogram drawn on the difference of two digital filters.
The indicator uses SmoothAlgorithms.mqh library classes (must be copied to the terminal_data_folder\MQL5\Include). The use of the classes was thoroughly described in the article "Averaging Price Series for Intermediate Calculations Without Using Additional Buffers".
Originally this indicator has been written in MQL4 and was first published in the Code Base on 10.10.2007.
Fig.1 The Digital_MACD indicator
Translated from Russian by MetaQuotes Software Corp.
Original code: https://www.mql5.com/ru/code/2114
A one period momentum averaged by the SMA algorithm.Laguerre_ROC
The ROC indicator smoothed by Laguerre filter drawn as a color histogram.