Moving Average Oscillator on Array Calculation (MT5)
Info
The Moving Average Oscillator on Array Calculation (MT5) is a Library for MetaTrader 5 that the cosmaonarray class is designed for the calculation of moving average oscillator (osma) values on indicator buffers. Usage:init() method:This method is called in the init() function with the following parameters:int afastperiod - Fast Moving Average period.
Usage
This tool is typically used for enhancing chart analysis and decision making.
Platform
This Library works exclusively on MetaTrader 5 (both build 600+ and newer versions).
Setup
Place the downloaded file in MQL5/Libraries folder via File ? Open Data Folder in MetaTrader 5.
How to Install and Use Moving Average Oscillator on Array Calculation (MT5)
1. Storage: Place library files in the MQL/Libraries directory to ensure they are accessible to your projects.
2. Implementation: Include the library in your code using the #import directive, ensuring you match the exact function names and parameters.
3. Compilation: Ensure the library is present in the directory before you compile your main EA or script, as the compiler links them during this phase.
4. Management: Keep libraries organized in sub-folders if you manage many custom functions to maintain a clean project structure.
Frequently Asked Questions
Q: What is a library file used for? A: Libraries store reusable code modules, allowing you to centralize common logic used by multiple EAs or indicators.
Q: Is a library executable? A: No, libraries are non-executable files containing functions; they must be imported into an EA, indicator, or script to function.
Q: Can I update a library while the platform is running? A: You should compile your EA or script after updating a library to ensure the latest code changes are integrated.
What this tool does
The COSMAonArray class is designed for the calculation of Moving Average Oscillator (OSMA) values on indicator buffers.
Typical Use Case
This Library excels in automated trading and technical analysis on MetaTrader 5.
Compatible Platform & Setup
This Library works on MetaTrader 5. Place the file in the MQL5/Libraries folder and restart the terminal.
Description & Settings
Related: moving averages library for metatrader 5 - another powerful library for MetaTrader 5 traders.
The COSMAonArray class is designed for the calculation of Moving Average Oscillator (OSMA) values on indicator buffers.Also recommended: Moving Average Calculation on Array Data - similar library with strong performance on MetaTrader 5.
Usage:
init() method:
This method is called in the init() function with the following parameters:
int afastperiod - Fast Moving Average period.
int aslowperiod - Slow Moving Average period.
int asignalperiod - Signal Line period.
enum_ma_method afastmethod - Fast Moving Average method.
enum_ma_method aslowmetod - Slow Moving Average method.
enum_ma_method asignalmethod - Signal Line method.
solve() method:
This method is called in the function with the following parameters:
const int aratestotal - The rates_total variable from the OnCalculate() function parameters.
const int aprevcalc - The prev_calculated variable from the OnCalculate() function.
double adata[] - The buffer with the data for the indicator calculation.
double afastma[] - Intermediate buffer for the Fast Moving Average.
double aslowma[] - Intermediate buffer for the Slow Moving Average.
double amain[] - Intermediate buffer for the MACD main line.
double asignal[] - Intermediate buffer for the MACD signal line.
double aosma[] - The calculated OSMA value.
Additional Methods:
int barsrequiredsignal() - Returns the minimum number of bars required for signal line calculation.
string name() - Returns the name of the indicator.
string names() - Returns the names of the Moving Averages.
A sample indicator, test_osmaonarray.mq5, demonstrates the application of the COSMAonArray class. The cosmaonarray.mqh file must be placed in the MQL5\Include\InConArray directory of your terminal's data folder (the InConArray folder must be created if it does not exist).
The CMAonArray class from the incmaonarray.mqh file is required for proper operation. It can be found [here](link-to-cmaonarray-class).
This class was updated in 2026.
You may also like: Average Directional Movement Index (ADX) Calculation Class for MQL5 - excellent alternative for library users on MetaTrader 5.
Source Code
#property copyright "robotfx"
#property link "https://robotfx.org"
#property version "1.00"
#property indicator_separate_window
#property indicator_buffers 6
#property indicator_plots 1
#property indicator_label1 "label1"
#property indicator_type1 draw_histogram
#property indicator_color1 clraquamarine
#property indicator_style1 style_solid.......
⚠ Limitations & Risk Warning
- This tool is provided for educational and testing purposes only.
- Past performance does not guarantee future results.
- Trading involves substantial risk of loss. Use on a demo account first.
- Results may vary depending on market conditions, broker, and settings.
- We recommend thorough backtesting and forward testing before using with real funds.