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How to Write an Expert Advisor or an Indicator

Top MQL4 and MQL5 source codes based on user ratings - 10

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This version of RSX allows you to use instead any momentum length.

AdxVma trend.

Median MA is a moving average, which is calculated using the median price for a given period.

Generic Index Indicator.

TTF

Oscillator TTF (Trend Trigger Factor) was developed as a method to identify market trends and reversals.

Step average - average true range based

Stochastic on chart

RSI slope divergence - multi time frame version

Step chart (upgraded version)

Optimal closing tool with Bollinger Bands and RSI.

Enhance your charts by adding intelligent markers for important price points and the start/end of year/month/week/day/session Includes a price pointer that changes color whenever price is near an important price point (e.g. historical high/low)

If you want to optimize your Expert Advisor using your own characteristics, you can use "Custom max" mode via OnTester() function. This code provides you many characteristics, which can be used during the optimization of your EA. Also it allows you to save the optimized charateristics in HTML file.

The indicator displays the horizontal line that sets the signal actuating level.

A small example of the Mandelbrot fractal calculation in OpenCL. The OpenCL accelerates calculations of fractal approximately up to 100 times in comparison with the CPU calculations.

This class contains functions for working with colors. It has color conversion and other useful functions.

Unlike ParabolicSAR this indicator is continuous and more precise. Indicator's calculation is also very easy.

Synchronize ОС/EA/MT processes etc. Any self-made DLLs are not needed now.

The indicator shows trend and side (flat) price movements.

Ozymandias is a well known indicator which filters false price fluctuations.

The BinaryWave indicator with the timeframe selection option available in the input parameters.

The class restricts the EA trading by time. It has flexible configuration options, which allow to set a custom number of the time zones, and also to allow trading only on the specified week days.

The indicator draws three pairs of the Bollinger Bands with a default standard deviation rate of 2, 3 and 4, respectively. Modified to accept all Bollinger Bands parameters.

Trading system based on XDPO_Histogram indicator signals.

Oscillator that represents the relative smoothed rate of price change.

The i-CAiChannel_System_Digit indicator with the timeframe selection option available in input parameters.

The indicator is finding out the minimum and maximum for the desired period and draws fibo zones in those bounds.

Blau T3 ergodic candlestick oscillator with new display types and styles

The upgraded version of Stochastic without repainting.

There are some additions in this indicator compared with MetaTrader 4-version.

Jurik velocity ("smoother moment") with added choice of prices.

Ron Black's swing line indicator for MetaTrader 5 version.

Adapting is done using standard deviations.

This version is an attempt to normalize MACD in known bounds

The NRTR_extr_ZigZag indicator with price labels of the ZigZag peak values.

A library for creating icons in the Windows taskbar and for sending text alerts. The use of this library will help you make your MQL programs more informative.

The Efficiency Ratio (ER) was first presented by Perry Kaufman in his 1995 book "Smarter Trading". It is calculated by dividing the price change over a period by the absolute sum of the price movements that occurred to achieve that change. The resulting ratio ranges between 0 and 1 with higher values representing a more efficient or trending market.

The indicator calculates the inclination angle of the last segment of moving average and shows it in the chart together with the MA line and the line drawn from the last segment of moving average.

Indicator that is checking for intra-day channel values and breakouts of those channels.

T3

The T3 Moving Average indicator

Calendar - fundamental analysis on history and real-time.

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