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How to Write an Expert Advisor or an Indicator

Top MQL4 and MQL5 source codes based on user ratings - 149

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The creation of the Expert Advisor stems from the topic "Neural networks - where to start studying them".

The script removes old objects of the selected type from all charts, if the time coordinates of these objects are outside of the trigger level.

T3 is very similar to EMA in calculating way and it makes it suitable for this way of calculation. As an extension of EMA levels it might prove to be useful but by all means do some experimenting in order to get the best results for specific symbol/timeframe combination.

The Expert Advisor opens positions inside two time intervals. Trades are closed at the specified time. Trailing Stop.

SZO

SZO (Sentiment Zone Oscillator) is an indicator of market sentiment, which has overbought and oversold zones.

The Dynamic Momentum Index (DMI) is a variable term RSI. When default values are used, the RSI term varies from 3 to 30. The variable time period makes the RSI more responsive to short-term moves. The more volatile the price is, the shorter the time period is. It is interpreted in the same way as the RSI, but provides signals earlier.

Step Chart indicator monitors the price change (in pips) and according to that, determines if a new "step" has been made or not.

ADXVMA indicator made as "binary" having only two values (+1 for "trend" up and -1 for "trend" down).

RSI_Histogram_Vol indicator in the candlestick form

The Expert Advisor based on ZigZag.

Working with Buy stop and Sell stop pending orders.

Pearson coefficient

RSX of adaptive lookback average

Indicator True Strength Index

An Expert Advisor based on iMA (Moving Average, MA) and iMACD (Moving Average Convergence/Divergence, MACD). Averaging positions, in case of a loss.

The XFisher_org_v1_Vol_Supr indicator with additional signals displayed as round dots, which indicate zero line breakout by the indicator line

Indicator Stalin_Signal displays information on the current trend, using the values of indicator Stalin_NRTR with a fixed timeframe

Normalized RSI

Intra-day Keltner channel extended

Simple moving average

XO

XO

This is a very easy-to-use indicator that displays the changes in Equity and balance of the trading account as it dynamically moves. Particularly useful on the back tester and good for beginners to read this very easy MQL5 code.

Current Candle To Close in x Time

This Expert Advisor is a demo of working with OBJ_CHART objects as conventional charts. You can set custom color settings, attach indicators etc.

This indicator shows the direction of the acceleration of JFatlSpeed price from a larger timeframe at a smaller one.

Trend indicator that displays "weak" bars

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

The indicator calculates the Moving Average using a modified algorithm of the linearly weighed Moving Average.

The trading system based on crossing of the DI+ and DI- lines of the ADX_Smoothed indicator

The set of dynamic support and resistance levels using the ATR indicator and Fibo levels.

The channel drawn on High and Low prices of daily candlesticks

The trading system is drawn on the basis of the signals of the JMASlope indicator.

A semaphore arrow indicator using three NavelEMA Moving Averages.

The RSI indicator implemented as a sequence of candlesticks

A trend indicator with four states

A non-normalized oscillator implemented in the form of colored icons.

The indicator draws candlesticks of a larger timeframe as color filled rectangles in accordance with the values of the XD-RangeSwitch indicator.

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

A colored cloud formed by the lines of the FATL and SATL digital filters.

The Accumulative Swing Index indicator is applied for accumulative swing index construction.

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