The Log Window (Window → Log) consolidates:
Verification is not just "no syntax errors." In the professional trading community, verification covers five distinct layers:
Your trading system is only as good as the code that runs it. Verify it, or verify your losses.
Use the Bar Replay tool in Amibroker. Watch your signals appear in real-time to ensure the Buy arrow doesn't "jump" to a previous candle once the current one closes. amibroker afl code verified
Create a separate verification AFL that runs your core logic on synthetic data.
Using Ref( Close, 1 ) or certain settings with ZigZag functions ( Zig() ).
When you download a script claiming to be run it through this forensic checklist. The Log Window (Window → Log) consolidates: Verification
A common mistake in AFL scripting is accidentally using future data to inform past decisions (look-ahead bias). A verified AFL script ensures that your buy/sell signals are based only on data available at the time of the trade, preventing artificially inflated backtest results. 2. Ensuring Accuracy in Backtesting
Run this in the Analysis Window to verify columns mathematically.
: If errors exist, the editor scrolls to the first mistake and provides a description, such as "Error 10" (syntax error) or "Error 29" (variable used without initialization). 🧪 Advanced Verification Techniques Watch your signals appear in real-time to ensure
However, there is a silent killer of trading accounts that has nothing to do with market volatility:
Look beyond total net profit. Verify your strategy using the Sharpe Ratio , Maximum Drawdown , and Profit Factor . A strategy with a massive profit but an unsustainable 60% drawdown is unverified for live trading.
Some functions (e.g., BarsSince() ) return the special value (displayed as -1e+010 ) when the condition has never been true.
Plot(Equity(1), "Recalculated Equity", colorRed, styleOwnScale);