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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

MQL4 Source Code Library for MetaTrader 4 - 51

The largest library features codes of free trading Expert Advisors, technical indicators and scripts. With the available applications you can trade in automated mode and analyze price dynamics. Use the library of codes to learn more about financial market sentiments.

Download free applications, test them and run in your MetaTrader 4. You can access them from the MetaTrader 4 platform and the MetaEditor development environment.

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Donchian Channel Indicator

Shows important support / resistance levels from different timeframes. Advanced filtering included.

Just a configurable Bear & Bull "Harami" pattern finder.

The adviser on indicators: Ichimoku, ADX.

Change of the price expressed in percentage.

This indicator for draw an Arrows for buy & sell, it's Depends on Stochastic

This is an EA I coded to make trades and experiment with trading in the Strategy Tester. Drag and drop objects in a yellow basket and control your orders.

Multi timeframe Relative Strength Index - has additional parameter - TimeFrame. You can use it to set up higher timeframe from which Relative Strength Index will calculate its values.

Multi timeframe MACD - has additional parameter - TimeFrame. You can use it to set up higher timeframe from which MACD will calculate its values.

The multiple currency adviser on the indicator Stochastic.

Without the display adviser.

This indicator will display current daily, weekly, and monthly percentage change.

Indicator that able to read doji with lenght set up

The Multi-currency adviser in the time, given by the user, opens a market position, on a choice Buy or Sell. As, it is possible to set closing of positions in the certain time, to choose currencies, to choose percent of the profit and loss for closing all

The adviser in the time, given by the user, opens a market position, Buy, Sell or lock. As, it is possible to set closing of positions in the certain time, and Trailing of positions.

The adviser on the indicator SAR. Works the postponed warrants.

It is possible to switch on or to switch off functions Alert, PlaySound, SendMail having moved the mouse the appropriate inscription in the basic window of the diagram.

This indicator shows you the trend on every timeframe simultaneously

A modification of the Bollinger Bands, in the same spirit as the Fractal Bands, but using a mathematically more precise equation

action just like pressing home key, esc to exit,

A variation of the Bollinger Bands that incorporates findings from a fractal analysis

The EA well trades on "fat" sites of a trend on periods H4 and D - EURUSD.The input in the market occurs on the basis of two-parametrical Exponential Smoothings Time Series.

This indicator displays lines on the chart corresponding to upcoming news events. Customizable.

Indicator for show some information about current currency

Indicator for draw line observed by the timing of certain (hour & minute of choice)

Indicator for show a percentage Conform to the current currency with another currency

Indicator for Show the length of the candle

for show High & Low & Close

PowerTrend V.2

a practice ea, create a horizontal line above the close to buy , below to sell. after position opened. create a new horizontal line to modify the stop loss and take profit. create a vertical line to close the position.

Fractally adaptive Simple MA, as the first FRAMA but modified to get the fractal dimension from FGDI, and possibility to shift the MA

This indicator for draw an Arrows for buy & sell, it's Depends on ADX Indicator http://forum.m-e-c.biz/post397645-1.html

This indicator for draw an Arrows for buy & sell , it's Depends on SSL channel chart Indicator http://forum.m-e-c.biz/t29121.html

This indicator for draw an Arrows for buy & sell , it's Depends on 2 Moving Averages http://forum.m-e-c.biz/t23791.html

To show the difference between (the High and Low) or between (the opening and closing) by choosing http://forum.m-e-c.biz/t28713.html

A useful well behaved stand alone chart tool for traders, and a practical demonstration and application of principles used in the iMAX3 indicator previously submitted.

to show the proportion of filled candle http://forum.m-e-c.biz/t28908.html

A hybrid indicator where three selectable phase shifted filtered signals can be used, either indivually, or collectively to detect price trends.

This indicator for draw an Arrows for buy & sell, it's Depends on RSI Indicator http://forum.m-e-c.biz/t25109.html

This indicator for draw an Arrows for buy & sell, it's Depends on Cross 3 Moving Averages http://forum.m-e-c.biz/t29278.html

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