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How to Write an Expert Advisor or an Indicator

Top MQL4 and MQL5 source codes based on user ratings - 12

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The indicator shows the areas, where fast MA and slow MA cross.

Here are 6 classes, designed for convenient and intuitive use of indicators in your code.

Trading system based on the signals of the WPR_Slowdown indicator.

ZigZag based on WPR oscillator.

"Classical" MA with a twist: colors change depending on the angle of the slope.

Standard MFI oscillator implemented as a histogram rounding its values to the standard range.

Keltner channel with some additional options

The widely known Keltner Chsnnel Oscillator in the new visual version .

The indicator shows the price chart of any scaling level.

Draws equidistant horizontal lines.

Adaptive super smoother is used for price pre-filtering before it is used to calculate a stochastic

Hull moving average with arbitrary weights of calculation.

Dynamic Momentum Index

The version of Aroon oscillator, displayed on the main chart.

Upgraded adaptive rapid rsi (stand deviations adaptive) using t3 filtered prices.

Variation of well know STARC (Stoller Average Range Channels) bands.

The Exp_Bezier_ReOpen trading system is based on the Bezier indicator color change with adding to trend-following positions.

Indicator for automatic selection of the coefficients for every instrument in a pseudo-stationary portfolio, which tends to equilibrium at zero.

The Expert Advisor manages positions using labels.

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

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

Displays important symbol and account parameters.

BB stops — RSI version.

The RSI indicator in a candlestick form with the Keltner channel calculated relative to RSI averaging.

A simple oscillator that uses the difference between candlestick open and close prices.

The tool allows drawing shapes in the chart.

Two Keltner channels based on one moving average, drawn as a colored cloud, with the display of the last values as price labels.

The Expert Advisor is based on the signals of indicators iBands (Bollinger Bands, BB) and iRSI (Relative Strength Index, RSI).

HOPS and LOPS indicator. The "HOPS" and "LOPS" stand for High Of the Previous Session and Low Of the Previous Sessions.

Probability levels based on ATR. "Probability" is calculated based on the projected Average True Range and previous period Close.

The US dollar index in form of Japanese candlesticks.

Indicator of trend strength and of the possible changes in its direction.

IT

Instantaneous Trendline - John Ehlers "instantaneous" trendline.

It deletes the arrow objects from the chart, which mark the transactions in the chart. The utility is implemented as an indicator that does not draw anything by itself.

Indicator iSAR with the timeframe selection option in input parameters, implemented in color, with the possibility to generate alerts when the trend changes its direction.

Indicator StopLoss Calculator.

EF

Indicator Ehlers Filter

Indicator Candle Code displays in a separate window the "code" of candlesticks as lines built on the ratio of each candle's parameters.

Two identical trading systems (for long and short positions) based on the signals of indicator NRTR, which can be differently configured within one EA.

ASO

Absolute Strength Oscillator (ASO) indicator

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