// Verified PositionScore = IIf(Nz(RSI(), 0) > 0, RSI(), 0);
The strategy does not use future data (i.e., it doesn’t make trading decisions based on data points that haven't occurred yet).
Once your code compiles without syntax errors, run these three audits to fully verify its performance: The Empty Data Test
AmiBroker provides specific tools to ensure your code is technically sound before you put capital at risk: Syntax Highlighter amibroker afl code verified
Below is an example of a structurally sound, clean, and verified AFL code template designed for a classic Dual Moving Average Crossover strategy. It incorporates best practices, including parameterization, signal visualization, and trade execution hygiene.
Always forward-test code in a demo account for two weeks.
Verified code avoids for() loops where array processing would suffice. It uses static variables ( StaticVarGet/Set ) sparingly. // Verified PositionScore = IIf(Nz(RSI(), 0) > 0,
A common trap: you edit and save your AFL file, but the Analysis window still runs an older version. This happens because the Analysis window caches the formula version used in the last run.
Use PlotShapes() to visually mark exactly where Buy , Sell , Short , and Cover signals trigger.
AmiBroker automatically checks that BuyPrice , SellPrice , ShortPrice , and CoverPrice fall within the of the bar. If a price is out of range, AmiBroker adjusts it (e.g., exceeding High becomes High). This can cause unexpected entry prices, so you must verify price arrays manually. Always forward-test code in a demo account for two weeks
Verified code prevents common errors like "future leaks" (using future data to predict the past) that lead to misleadingly high backtest results.
This guide explores what makes AFL (AmiBroker Formula Language) code trustworthy, how to verify it yourself, and where to find high-quality, pre-verified AFL codes. 1. What Does "AmiBroker AFL Code Verified" Actually Mean?