// Plotting Plot(C, "Price", colorBlack, styleCandle); Plot(FastMA, "Fast MA", colorBlue, styleLine); Plot(SlowMA, "Slow MA", colorRed, styleLine); PlotShapes(IIf(Buy, shapeUpArrow, shapeNone), colorGreen); PlotShapes(IIf(Sell, shapeDownArrow, shapeNone), colorRed);
: Identifiers are names given to variables and functions (e.g., MyIndicator
In the world of retail trading, speed, accuracy, and backtesting reliability separate the winners from the spectators. has stood as a titan in the technical analysis space for nearly two decades. Its secret weapon? AFL (AmiBroker Formula Language) . amibroker afl code
Below is a foundational template illustrating how these pieces fit together. This script implements a simple Exponential Moving Average (EMA) crossover system.
To create a comprehensive article, I need to cover introduction, basics, key functions, examples, strategies, optimization, debugging, resources, etc. The search results need to cover these aspects. AFL (AmiBroker Formula Language)
Loops ( for , while ) and conditionals ( if , else ). Getting Started with Your First AFL Code
Amibroker – 20 Essential Things You Should Know Before You Start To create a comprehensive article, I need to
Use built-in AFL functions ( MA , RSI , HHV ) whenever possible, as they are highly optimized.
This vectorization eliminates the need for slow for loops when executing basic indicators. The Execution Engine
// 1. Setup Parameters for User Customization FastPeriod = Param("Fast EMA Period", 12, 2, 50, 1); SlowPeriod = Param("Slow EMA Period", 26, 10, 200, 1); // 2. Define Technical Indicators FastEMA = EMA( Close, FastPeriod ); SlowEMA = EMA( Close, SlowPeriod ); // 3. Define Entry and Exit Rules (Signals) Buy = Cross( FastEMA, SlowEMA ); // True (1) when Fast EMA crosses above Slow EMA Sell = Cross( SlowEMA, FastEMA ); // True (1) when Fast EMA crosses below Slow EMA Short = 0; // Deactivating short selling for this long-only system Cover = 0; // 4. Graphical Display and Charting Plot( Close, "Price Chart", colorDefault, styleCandle ); Plot( FastEMA, "Fast EMA (" + FastPeriod + ")", colorGreen, styleLine | styleThick ); Plot( SlowEMA, "Slow EMA (" + SlowPeriod + ")", colorRed, styleLine | styleThick ); // 5. Visualizing Buy and Sell Arrows on the Chart PlotShapes( IIf( Buy, shapeUpArrow, shapeNone ), colorGreen, 0, Low, -15 ); PlotShapes( IIf( Sell, shapeDownArrow, shapeNone ), colorRed, 0, High, -15 ); Use code with caution. Key Functions Explained
AFL formulas consist of expression statements, each of which must end with a semicolon ( ; )