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Expert Advisor: Exp Bezier St Dev
Info
The Expert Advisor: Exp Bezier St Dev is a Expert Advisor for MetaTrader 5 that this expert advisor (ea) is a trading system that relies on indicator signals for market entry and exit decisions. It operates based on the Bezier_StDev indicator, which generates signals at the close of a bar when a color point appears.
Usage
This tool is typically used for automated trading on major forex pairs and gold.
Platform
This Expert Advisor works exclusively on MetaTrader 5 (both build 600+ and newer versions).
Setup
Place the downloaded file in MQL5/Experts folder via File ? Open Data Folder in MetaTrader 5.
How to Install and Use Expert Advisor: Exp Bezier St Dev
1. Installation: Open the "File" menu, select "Open Data Folder," navigate to MQL/Experts, paste your file, and restart the terminal.
2. Activation: Drag the EA from the Navigator onto a chart, ensure "Allow live trading" is checked in the Common tab, and verify the AutoTrading button is green.
3. Optimization: Right-click your chart, choose "Expert List," click "Properties" to adjust inputs, and save your preferred setup as a set file for future use.
4. Maintenance: Regularly check the "Experts" tab in the terminal window to monitor trade logs and potential execution errors.
Frequently Asked Questions
Q: Why is my EA not opening trades? A: Check the "AutoTrading" button, ensure "Allow live trading" is enabled, and verify your broker allows automated trading on your account type.
Q: Can I run multiple EAs on one chart? A: No, each chart can only host one active EA; however, you can open multiple charts for different currency pairs to run several EAs.
Q: What does the "smiley face" icon mean? A: A smiley face in the top-right corner of the chart indicates the EA is successfully running; a frowny face means it is disabled.
What this tool does
This Expert Advisor (EA) is a trading system that relies on indicator signals for market entry and exit decisions.
Typical Use Case
This Expert Advisor excels in automated trading and technical analysis on MetaTrader 5.
Compatible Platform & Setup
This Expert Advisor works on MetaTrader 5. Place the file in the MQL5/Experts folder and restart the terminal.
Description & Settings
Related: VPS Toolkit: Secure Order Sending and Restart-Safe State for Expert Advisors - another powerful expert for MetaTrader 5 traders.
This Expert Advisor (EA) is a trading system that relies on indicator signals for market entry and exit decisions. It operates based on the Bezier_StDev indicator, which generates signals at the close of a bar when a color point appears.Also recommended: Automated Live Testing for Expert Advisors on Demo Accounts - similar expert with strong performance on MetaTrader 5.
The EA's logic is straightforward: it opens a trade when a signal forms and closes the trade when the indicator's direction changes opposite to the open position.
The EA requires the compiled indicator file Bezier_StDev.ex5 to function, which should be placed in the <terminal_data_folder>\mql5\indicators directory.
Additionally, the EA utilizes the TradeAlgorithms.mqh library, enabling compatibility with brokers that offer nonzero spreads and the ability to set stop loss and take profit orders simultaneously with position opening. The library can be downloaded from the provided link, offering various versions for specific needs.
The test results presented below were obtained using the EA's default input parameters, without employing stop loss or take profit orders.
Fig. 1. Examples of trades on the chart
The EA was tested on the EURJPY currency pair with a 4-hour timeframe in 2026, as illustrated in Fig. 2. The charts showcase the EA's performance, providing insights into its trading strategy and potential outcomes.
You may also like: Programmatically Attach Expert Advisors with Custom Inputs to MetaTrader 5 Charts - excellent alternative for expert users on MetaTrader 5.
Source Code
#property copyright "robotfx"
#property link "https://robotfx.org"
#property version "1.01"
#property indicator_chart_window
#property indicator_buffers 4
#property indicator_plots 3
#property indicator_type1 draw_color_line
#property indicator_color1 clrgray,clrdodgerblue,clrchocolate
#property indicator_style1 style_solid
#property indicator_width1 3.......
⚠ 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.