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How to Write an Expert Advisor or an Indicator

MQL5 Source Code Library for MetaTrader 5 - 126

This is the largest free source code library for MetaTrader 5 platform programs. Here you can find ready-made Expert Advisors, technical indicators, scripts and libraries. Use the code library when learning MQL5 language and develop your own automated trading applications based on the provided codes.

You can freely download and test published codes, as well as launch them in MetaTrader 5. The library is also available directly from MetaTrader 5 platform and MetaEditor development environment.

To post a new code, please log in or register

The oscillator drawn on the basis of the simplified algorithm of the perceptron

One more variation on the channels theme.

This script attempts to demonstrate the power of using support vector machines in solving classification style problems. This version of the code has been written specifically to be used in conjunction with the demo version of the Support Vector Machine Learning Tool available for free from the MQL5 Market.

This script attempts to demonstrate the power of using support vector machines in solving classification style problems.

The indicator from Technical Analysis of Stocks & Commodities (January, 2010)

The indicator allows predicting the trend reversal

The Bollinger Bands indicator with filtering of front and damping.

Trading system using the MACD_Xtr indicator

The HaDelta indicator can help to be ahead the crowd.

Trading system drawn on the basis of the signals of the TrendValue indicator

The indicator automatically identifies points and draws support and resistance trend lines on them. There are two types of lines calculation

The method of the advanced adaptation with a zero delay on the volatility front

The indicator to search extremums of volatility

The breakthrough trading system using the MA_Rounding_Channel indicator.

Trading system using the zero point indicator.

This indicator draws candlesticks in accordance with the color of the bars in histogram of the 2pbIdealXOSMA indicator.

The indicator draws the channel for flat market based on the MA Rounding.

Crossed МА and ZigZag. To be more exactly, МА drawn on the Zigzag principle.

The indicator draws candlesticks depending on the trend direction.

Trading system using the Kolier_SuperTrend trend indicator

The breakthrough trend indicator

Trading system using the RMACD histogram.

The MACD histogram drawn on the basis of the RVI technical indicator and the TRVI custom indicator.

The Expert Advisor drawn on the basis of the MALR indicator. Trailing stop, lot increase, averaging and reversal functions are available

The Exp_MAMA Expert Advisor drawn using the entry when crossing Moving Averages of the MAMA indicator

The indicator for automatic drawing of consolidation areas and channels on the basis of the linear regression

Trading system based on the signals of the parabolic that uses Moving Average values as an input time series.

The Zero Point Force indicator drawn on the basis of two Moving Averages.

The simpliest linear combination of eight stochastics in the form of the oscillator

The oscillator drawn on the basis of four lines of the Ichimoku indicator.

Trend indicator that displays "weak" bars

The Exp_AdaptiveRenko Expert Advisor drawn on the basis of the NRTR of the AdaptiveRenko indicator

The iSAR technical indicator which uses the X2MA Moving Average as the basic price series for the best filtrating of false signals.

The Exp_JBrainSig1_UltraRSI Expert Advisor uses the values of JBrainTrend1Sig and UltraRSI indicators to analyze the market state.

The iSAR indicator's main advantage is that it is based on current price time series thanks to which it can be applied to the other indicators

The Expert Advisor is drawn on the Oracle redrawing indicator

Displaced Moving Averages

The breakthrough trading system using the Candles_Smoothed indicator.

The NRTR Moving Average from Konstantin Kopyrkin for trailing stops and trends display

The Moving Average of a linear regression with two levels of bands like John Bollinger bands