Real author:

Tom Balfe

Semaphore signal indicator based on the relative smoothed rate of price change.

The indicator uses SmoothAlgorithms.mqh library classes (copy it to <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 08.03.2008.

Fig.1. The PPO_Sign indicator