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Access the CodeBase from your MetaTrader 5 terminal

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How to Write an Expert Advisor or an Indicator

MQL5 Source Code Library for MetaTrader 5 - 6

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.

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Candlestick size and shadow analysis. In OnTradeTransaction, opening (DEAL_ENTRY_IN) and closing (DEAL_ENTRY_OUT) the positions are intercepted, as well as closing by Stop loss (DEAL_REASON_SL).

An unorthodox approach to indicator MACD: The EA calculates the indicator's area displayed above and below zero line.

A trading system based on object Fibonacci Lines (OBJ_FIBO) and on indicator Resistance & Support

ADX trend smoothed - multi time frame

ADX trend - smoothed

Variation of a well known Pivot indicator showing pivot lines in a separate window and price position relative to those pivot lines.

Pivot oscillator - averages

RSI of JMA

RSI (var) using Jurik MA

A histogram based on the difference between the main and the signal lines of indicator Ang_Zad_C in the points of the price chart.

A trend-following indicator of the main and signal lines, drawn as a color cloud.

Indicator AbsolutelyNoLagLwma_Digit_Cloud with the timeframe selection option available in its input parameters.

Indicator XPeriodCandle_main with the timeframe selection option available in its input parameters.

Trend-following trading system Exp_XPeriodCandle_X2 is based on the signals of two indicators: XPeriodCandle and XPeriodCandle_HTF.

Indicator XPeriodCandle in the main chart.

Indicator XPeriodCandleRange with the timeframe selection option available in the input parameters

An indicator that draws the XPeriodCandle candlestick sizes in points.

Indicator AbsolutelyNoLagLwma_BBx7_Cloud_Digit with the timeframe selection option available in the input parameters.

Three Bollinger Bands channels based on one moving average AbsolutelyNoLagLwma, drawn as a colored cloud, with the display of the last values as price labels and the possibility to round Bollinger levels up to a required number of digits.

Indicator PCaudateXPeriodCandleRange with the timeframe selection option available in its input parameters.

Indicator CaudateCandle with the timeframe selection option available in the input parameters

Indicator XPeriodCandle with the timeframe selection option available in its input parameters.

A trading system based on the signals of indicator XPeriodCandle.

A trading system based on the signals of indicator CaudateXPeriodCandle, enabling to maintain your positions within a fixed period of time.

Indicator to show the difference of the Vortex indicator lines.

Trend-following indicator Vortex.

Indicator TCI (Trading Channel Index).

Indicator Trend Intensity Index.

Indicator Trend Analysis Index.

Stochastic relative strength index in creases the sensitivity of RSI (Relative Strength Index), the disadvantage of which is fluctuation between boundary lines and no signals to open a position.

Indicator "Range Indicator."

A signal indicator of daily ranges.

Oscillator PAIN (Price Action Indicator).

NV (Natenberg's Volatility) - Sheldon Natenberg's historical volatility indicator.

Indicator Intraday Momentum Index.

Oscillator CVI (Chartmill Value Indicator).

Indicator APZ (Adaptive Price Zone) represents an adaptive price channel.

Indicator AML (Adaptive Market Level) displays one of three market states: Flat, uptrend, and downtrend.

Indicator ZLS (Zero Lag Stochastic) - a zero-delay stochastic - a ratio of several stochastics with different periods %К, deceleration, and weights.

A simple include file to print out the values and names of variables.

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