, backtests, and explorations [0.2]. To produce a "proper article" with verified code, you must structure your formula to handle data arrays efficiently and include essential AmiBroker functions for signal generation and visualization. 1. Essential Article Structure for AFL
When you download a script claiming to be run it through this forensic checklist.
You would never board a plane that wasn’t flight-verified. You shouldn’t put your trading capital behind code that hasn’t been objectively validated. isn’t just a buzzword—it is the dividing line between systematic speculation and random gambling.
AmiBroker's AFL (AmiBroker Formula Language) is a powerful, array-based language for backtesting and automated trading. However, its flexibility and unique execution model (bar-by-bar vs. array) create significant risks: look-ahead bias, repainting signals, data-snooping errors, and execution slippage. This paper presents a comprising static analysis, runtime assertion checking, and post-execution validation. We introduce a set of canonical verification patterns, a taxonomy of common AFL bugs, and a reproducible methodology to ensure that backtest results map faithfully to live trading performance.