Amibroker Afl Code Official

AFL serves as the engine for four primary functions within the AmiBroker platform : AFL Reference Manual - AmiBroker

// 3. Volume Trend Feature // Comparing current volume to its 20-day average mVol = MA(V, 20); VolTrend = IIf(mVol > 0, V / mVol, 1);

To ensure your scripts execute fast and remain free of look-ahead biases, adhere to these development practices:

: Search through thousands of symbols simultaneously to find stocks meeting specific quantitative or fundamental criteria. amibroker afl code

Buy when the 50-period Moving Average crosses above the 200-period MA. Sell when it crosses below.

When using loops, always set LookBack to the minimum period required. For example: SetBarsRequired( 500, 100 ); This tells AmiBroker to only load 500 bars, saving memory.

To discover the most profitable variables for a system, use the Optimize() function during a backtest run. AFL serves as the engine for four primary

: Filter stocks using data like Earnings Per Share (EPS), debt levels, and net income.

Amibroker is a leading technical analysis and trading system development platform. At its core lies the , a high-level programming language designed specifically for defining trading rules, custom indicators, and explorations. Unlike general-purpose languages like C++ or Python, AFL is optimized for array processing and vectorized operations, allowing for the rapid backtesting of trading strategies over massive datasets. This paper outlines the syntax, structural logic, and operational framework of AFL.

(e.g., moving average crossover with a trailing stop) Automation (e.g., connecting to a broker API) Sell when it crosses below

Use PlotShapes() to display buy/sell arrows on the chart.

: Compare a ticker against a benchmark index like the S&P 500 to create a "relative strength" feature. SetForeign() to pull external closing prices for comparison. Composite Aggregates AddToComposite()

Creating scanners, signal generators, and backtests.

// --- Inputs --- DonchianPeriod = Param("Donchian Period", 20, 5, 50, 1); RSILen = Param("RSI Length", 14, 5, 30, 1); RSI_Threshold = Param("RSI Min", 50, 30, 70, 1); ExitMAPeriod = Param("Exit MA Period", 10, 5, 50, 1);

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