Articles with examples of trading robot developed in MQL4

icon

An Expert Advisor is the 'pinnacle' of programming and the desired goal of every automated trading developer. Read the articles in this section to create your own trading robot. By following the described steps you will learn how to create, debug and test automated trading systems.

The articles not only teach MQL5 programming, but also show how to implement trading ideas and techniques. You will learn how to program a trailing stop, how to apply money management, how to get the indicator values, and much more.

Add a new article
latest | best
Applying fuzzy logic in trading by means of MQL4
Applying fuzzy logic in trading by means of MQL4

Applying fuzzy logic in trading by means of MQL4

The article deals with examples of applying fuzzy set theory in trading by means of MQL4. The use of FuzzyNet library for MQL4 in the development of an indicator and an Expert Advisor is described as well.
Enhancing the StrategyTester to Optimize Indicators Solely on the Example of Flat and Trend Markets
Enhancing the StrategyTester to Optimize Indicators Solely on the Example of Flat and Trend Markets

Enhancing the StrategyTester to Optimize Indicators Solely on the Example of Flat and Trend Markets

It is essential to detect whether a market is flat or not for many strategies. Using the well known ADX we demonstrate how we can use the Strategy Tester not only to optimize this indicator for our specific purpose, but as well we can decide whether this indicator will meet our needs and get to know the average range of the flat and trend markets which might be quite important to determine stops and targets of the markets.
Price Action. Automating the Engulfing Pattern Trading Strategy
Price Action. Automating the Engulfing Pattern Trading Strategy

Price Action. Automating the Engulfing Pattern Trading Strategy

This article describes a process of creating an Expert Advisor for MetaTrader 4 based on the Engulfing pattern, as well as the pattern recognition principle, rules of setting pending orders and stop orders. The results of testing and optimization are provided for your information.
Price Action. Automating the Inside Bar Trading Strategy
Price Action. Automating the Inside Bar Trading Strategy

Price Action. Automating the Inside Bar Trading Strategy

The article describes the development of a MetaTrader 4 Expert Advisor based on the Inside Bar strategy, including Inside Bar detection principles, as well as pending and stop order setting rules. Test and optimization results are provided as well.
Common Errors in MQL4 Programs and How to Avoid Them
Common Errors in MQL4 Programs and How to Avoid Them

Common Errors in MQL4 Programs and How to Avoid Them

To avoid critical completion of programs, the previous version compiler handled many errors in the runtime environment. For example, division by zero or array out of range are critical errors and usually lead to program crash. The new compiler can detect actual or potential sources of errors and improve code quality. In this article, we discuss possible errors that can be detected during compilation of old programs and see how to fix them.
Mechanical Trading System "Chuvashov's Triangle"
Mechanical Trading System "Chuvashov's Triangle"

Mechanical Trading System "Chuvashov's Triangle"

Let me offer you an overview and the program code of the mechanical trading system based on ideas of Stanislav Chuvashov. Triangle's construction is based on the intersection of two trend lines built by the upper and lower fractals.
Contest of Expert Advisors inside an Expert Advisor
Contest of Expert Advisors inside an Expert Advisor

Contest of Expert Advisors inside an Expert Advisor

Using virtual trading, you can create an adaptive Expert Advisor, which will turn on and off trades at the real market. Combine several strategies in a single Expert Advisor! Your multisystem Expert Advisor will automatically choose a trade strategy, which is the best to trade with at the real market, on the basis of profitability of virtual trades. This kind of approach allows decreasing drawdown and increasing profitability of your work at the market. Experiment and share your results with others! I think many people will be interested to know about your portfolio of strategies.
Research of Statistical Recurrences of Candle Directions
Research of Statistical Recurrences of Candle Directions

Research of Statistical Recurrences of Candle Directions

Is it possible to predict the behavior of the market for a short upcoming interval of time, based on the recurring tendencies of candle directions, at specific times throughout the day? That is, If such an occurrence is found in the first place. This question has probably arisen in the mind of every trader. The purpose of this article is to attempt to predict the behavior of the market, based on the statistical recurrences of candle directions during specific intervals of time.
Events in МetaТrader 4
Events in МetaТrader 4

Events in МetaТrader 4

The article deals with programmed tracking of events in the МetaТrader 4 Client Terminal, such as opening/closing/modifying orders, and is targeted at a user who has basic skills in working with the terminal and in programming in MQL 4.
Orders Management - It's Simple
Orders Management - It's Simple

Orders Management - It's Simple

The article deals with various ways of how to control open positions and pending orders. It is devoted to simplifying of writing Expert Advisors.
Expert Advisor Sample
Expert Advisor Sample

Expert Advisor Sample

The principles of MQL4-programs development are shown on sample of creating a simple Expert Advisor system based on the standard MACD indicator.