In the high-stakes arena of algorithmic trading, the bridge between a conceptual strategy and market execution is built on code. For many professional traders, that bridge is the AmiBroker Formula Language (AFL) , a proprietary scripting language designed for speed, flexibility, and deep technical analysis. Unlike general-purpose languages, AFL is purpose-built to handle financial data series, offering a unique blend of simplicity for beginners and advanced power for quantitative experts. The Architecture of AFL: Array Processing and Efficiency
Insert _TRACE("Variable X = " + WriteVal(X)); to print values to the Log window (View -> Log). amibroker afl code
To write clean code, you must first understand the primary data types and structure used in AmiBroker. Core Data Types In the high-stakes arena of algorithmic trading, the
ApplyStop( stopTypeLoss, stopModePercent, 2, True ); // 2% trailing stop ApplyStop( stopTypeProfit, stopModePercent, 5 ); // 5% profit target SetPositionSize( 10, spsPercentOfEquity ); // 10% of portfolio per trade The Architecture of AFL: Array Processing and Efficiency
Unlocking Trading Strategies with AmiBroker Formula Language (AFL)
AFL arrays always match the bars on the current chart, making them intrinsically aligned with your time series data.
This code buys when price touches the lower band in an uptrend.