IncEROnArray – library MetaTrader 5

CEROnArray class is designed to calculate the Efficiency Ratio (ER) used in the Adaptive Moving Average (AMA).

Usage:

Init() method with the following parameter is called in the OnInit() function:

• int aPeriod – efficiency ratio calculation period.

Solve() method with the following parameters is called in the OnCalculate() function:

• const int aRatesTotal – is a rates_total variable from the OnCalculate() function parameters;
• const int aPrevCalc – prev_calculated variable from the OnCalculate() function;
• double aData[] –  data buffer for the indicator calculation;
• double aER[] – the buffer with the calculated value.

Additional methods:

• int BarsRequired() – returns the minimum number of bars for the indicator calculation;
• string Name() – returns the line with the indicator name.

Test_EROnArray.mq5 is a sample indicator showing CEROnArray class application. IncEROnArray file must be placed to MQL5\Include\IncOnArray of the terminal data folder (IncOnArray folder must be created).