Articles on strategy testing in MQL4

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How to develop, write and test a trading strategy, how to find the optimal system parameters and how to analyze the results? The MetaTrader platform offers developers of trading robots rich functionality for fast and accurate testing of trading ideas. Read these articles to learn how to test multi-currency robots and how to use MQL5 Cloud Network for optimization purposes.

Developers of automated trading systems are recommended to start with the testing fundamentals and tick generation algorithms in the strategy tester.

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Evaluating the effectiveness of trading systems by analyzing their components
Evaluating the effectiveness of trading systems by analyzing their components

Evaluating the effectiveness of trading systems by analyzing their components

This article explores the effectiveness of complex trading systems by analyzing the efficiency of its individual components. Any analysis, whether it is graphic, based on indicators, or any other, is one of the key components of successful trading in financial markets. This article is to some extent a research of few simple and independent trading systems for analyzing their effectiveness and usefulness of the joint application.
Testing and Optimization of Expert Advisors
Testing and Optimization of Expert Advisors

Testing and Optimization of Expert Advisors

The article provides a detailed description of the process of testing and optimizing Expert Advisors in the MetaTrader 4 Strategy Tester. The importance of such information and the need for this publication cannot be underestimated. A lot of users who only get started with the MetaTrader 4 trading platform have a very vague idea of what and how needs to be done when working with Expert Advisors. The proposed article gives simple and clear answers to all of these questions and provides a slightly more professional approach to handling these issues using a specific example.
Testing Expert Advisors on Non-Standard Time Frames
Testing Expert Advisors on Non-Standard Time Frames

Testing Expert Advisors on Non-Standard Time Frames

It's not just simple; it's super simple. Testing Expert Advisors on non-standard time frames is possible! All we need to do is to replace standard time frame data with non-standard time frame data. Furthermore, we can even test Expert Advisors that use data from several non-standard time frames.
Using Neural Networks In MetaTrader
Using Neural Networks In MetaTrader

Using Neural Networks In MetaTrader

This article shows you how to easily use Neural Networks in your MQL4 code taking advantage of best freely available artificial neural network library (FANN) employing multiple neural networks in your code.
A Pattern Trailing Stop and Exit the Market
A Pattern Trailing Stop and Exit the Market

A Pattern Trailing Stop and Exit the Market

Developers of order modification/closing algorithms suffer from an imperishable woe - how to compare results obtained by different methods? The mechanism of checking is well known - it is Strategy Tester. But how to make an EA to work equally for opening/closing orders? The article describes a tool that provides strong repetition of order openings that allows us to maintain a mathematically correct platform to compare the results of different algorithms for trailing stops and for exiting the market.
How Not to Fall into Optimization Traps?
How Not to Fall into Optimization Traps?

How Not to Fall into Optimization Traps?

The article describes the methods of how to understand the tester optimization results better. It also gives some tips that help to avoid "harmful optimization".
Tester in the Terminal MetaTrader 4: It Should Be Known
Tester in the Terminal MetaTrader 4: It Should Be Known

Tester in the Terminal MetaTrader 4: It Should Be Known

The elaborate interface of the terminal MetaTrader 4 is a forefront, but beside this the terminal includes a deep-laid tester of strategies. And while the worth of MetaTrader 4 as a trading terminal is obvious, the quality of the tester's strategy testing can be assessed only in practice. This article shows the advantages and conveniences of testing in MetaTrader 4.
Testing Visualization: Trade History
Testing Visualization: Trade History

Testing Visualization: Trade History

The article describes the possibilities of convenient viewing the trade history when visualizing tests. Starting from build 196, MetaTrader 4 Client Terminal offers testing visualization function. It allows controlling the Expert Advisors' testing on a brand new level. Now, the trading programmer can watch every action of his or her Expert Advisor checking its operation on history!
My First "Grail"
My First "Grail"

My First "Grail"

Examined are the most frequent mistakes that lead the first-time programmers to creation of a "super-moneymaking" (when tested) trading systems. Exemplary experts that show fantastic results in tester, but result in losses during real trading are presented.
Genetic Algorithms: Mathematics
Genetic Algorithms: Mathematics

Genetic Algorithms: Mathematics

Genetic (evolutionary) algorithms are used for optimization purposes. An example of such purpose can be neuronet learning, i.e., selection of such weight values that allow reaching the minimum error. At this, the genetic algorithm is based on the random search method.
Strategy Tester: Modes of Modeling during Testing
Strategy Tester: Modes of Modeling during Testing

Strategy Tester: Modes of Modeling during Testing

Many programs of technical analysis allow to test trading strategies on history data. In the most cases, the testing is conducted on already completed data without any attempts to model the trends within a price bar. It was made quickly, but not precisely