Amibroker | Afl Code Verified

If past trades changed, your code contains a look-ahead bias and is . Step 3: Visually Inspect the Chart

Open the AFL Editor by going to in AmiBroker. Use the Check button (the green checkmark icon) frequently. This tool scans your code for syntax errors and displays them instantly in the bottom output window. Step 2: Enforce Strict Array Checking

Use the built-in or systematically shift your historical data forward by 10 bars. If your historical entry signals move with the shift, your code contains look-ahead bias. Step 3: Implement the BarIndex() Safeguard

Plot(RepaintDetected, "Repaint Error", colorRed, styleOwnScale); if( LastValue( Cum( RepaintDetected ) ) > 0 ) printf("WARNING: repainting detected in %g bars", LastValue(Cum(RepaintDetected))); amibroker afl code verified

Document why a specific condition was added. This speeds up troubleshooting months down the road.

PlotText("Not enough data", Status("pxchartleft"), Status("pxcharttop"), colorRed); return; // Stop execution

Professional verifiers add timestamps:

Disclaimer: Trading stocks and derivatives involves high risk. No trading strategy, including verified AFL codes, guarantees profits. Always backtest thoroughly and use stop-loss orders. If you'd like to dive deeper, I can help you with: a specific formula you are trying to verify. Optimizing your existing AFL code for faster backtesting. Writing a new, custom AFL strategy based on your rules.

Unit-style testing with synthetic data

. This badge identifies you as a legitimate license holder, which increases trust and engagement from the community. AmiBroker Community Forum If past trades changed, your code contains a

To confirm an AFL script is "verified," traders and developers typically use these three layers of testing:

"Verification" in Amibroker typically refers to two things: