A semaphore signal indicator based on the price extremums for the two periods determined by the indicator input parameter.
Originally this indicator has been written in MQL4 and was first published in the Code Base on 04.01.2016.
Figure 1. The AlphaTrendSpotter-pa_free indicator
Translated from Russian by MetaQuotes Software Corp.
Original code: https://www.mql5.com/ru/code/14720
The Acceleration/Deceleration Indicator (AC) measures acceleration and deceleration of the current driving force.Average Directional Movement Index (ADX)
The Average Directional Movement Index Indicator (ADX) helps to determine if there is a price trend.