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Como escrever um Expert Advisor ou um indicador

Biblioteca de códigos fonte MQL4 para MetaTrader MQL4 - 82

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A maior biblioteca gratuita de Expert Advisors (EAs), indicadores técnicos e scripts em código-fonte. Os aplicativos apresentados permitem que você negocie em modo automático e analise mais detalhadamente a dinâmica das cotações. Utilizando a biblioteca de códigos, você saberá mais sobre a dinâmica e o comportamento dos mercados financeiros.

Estes aplicativos podem ser livremente baixados, testados e executados no MetaTrader 4. O acesso a eles também pode ser obtido da plataforma MetaTrader 4 e do ambiente de desenvolvimento MetaEditor.

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Trading information with Fractal trend.

The indicator calculates and draws the highest, lowest and median point of certain period.

The script recognizes and shows peaks and valleys of certain period.

This indicator will write value degrees of the lastest position of price at the current timeframes, and when position and condition of trend status was changed, the indicator will give an alerts.

3 EMA Crossover Indicator.

This indicator based on a 5 period simple moving average detects trends: if there is an uptrend then shows green bars, if there is a downtrend then shows red bars, if there is a weak trend then shows yellow bars.

Realize virtual profit trailing.

Parabolic SAR ADX Expert Advisor.

Expert Advisor template with Trailing Stop, autolots, candle scan, buy block sell, buystop / sellstop. Working ea example and many improvements in template!

This Expert Advisor is based on SMA, ADX and SAR indicators.

Advanced ADX indicator.

Plot the STOPD Price Levels based on user specified timeframe.

Step Up and Down Forex Indicator draws the price direction movement with single arrow Up or Down on the trading chart.

DailyLines Vertical lines starting new Day with above name of the DAY. Period Separators with options to choose different styles.

3 Dimensional MACD Ribbon.

This is a percentage of the user set stop-loss or profit robot.

ProfitInfo is an indicator to show in one window opened buy and sell trades of defined symbols and systems.

An indicator based on three moving averages.

The indicator loads as a Menu on the menu bar. Click the Symbol Menu to open or close the symbol list. Click a selected symbol to change the chart symbol.

This indicator combines Moving Average (MA) and Average True Range (ATR).

This indicator draws three Donchian bands: up, middle and down bands based on which you can design your scalping system.

This indicator adds H3, H6, H8 and H12 time frames into your charts.

My first exad.....comment if any not modified and improve ment running..

Camarilla Level Pivots.

The EA opens transactions when RSI is Upper or Below 50

The gSpeak dll for MetaTrader Build 6xx

Multi timeframe fractal indicator with "Extend_Line" and "Show_Validation_Candle" functions (compatible with MT4 build 600 or later).

EA Crossing of 2 MA

Combine Candle sticks and Market Profile indicator.

Script Calling Library for MT4 build 600 and later

This indicator will write the price of Pivot Point on the trading chart, ranging from Price Support 6 to Price Resistance 6. When prices change or pass one of Pivot Price level, the indicator will be given alerts.

This EA just using a very simple formula, but according to my experience, the formula was accurate enough to make a profit.

Fibonacci Retracement Levels indicator draws Fibonacci Retracement Levels on the trading chart.

Scan for conditions in which you have an interest. Show where the condition arose historically on the current Symbol and timeframe. On a separate panel, show where the condition has currently arisen for any of your chosen symbols and timeframes.

This is my first Expert Advisor so please give feedback on how I can improve it to make the best possible EA. Thanks for the inputs in advance and happy trading.

This is a Class for the new MQL4 that parses JSON. It requires the Hash.mqh class.

This Expert Advisor is based on your human ability to predict medium and long term trends.

It opens and close transactions depends on MACD vs signal line - upper - opens buy, closes sell, below - closes buy, opens sell.

The indicator ыimulates the full structure of the market profile system that described by "James Dalton" in his book "Mind Over Markets".

This code is an Alternative of the missing OnTrade() event in MQL4.

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