Williams Fractals with Buy/Sell Signals

🧠 Concept:
This indicator is based on the concept of fractal swing highs and lows, commonly used in Bill Williams’ trading methods. A fractal forms when a candle’s high or low is higher/lower than a set number of candles on both sides. This structure helps identify local market turning points.

⚙️ Inputs:
Fractal Sensitivity (swingSensitivity):
Number of candles required on each side of the central bar to validate a fractal.

For example, if set to 2, a swing high is detected when a bar’s high is higher than the previous 2 bars and the next 2 bars.

✅ Features:
Fractal Detection:

Plots white triangles above swing highs (down fractals).

Plots white triangles below swing lows (up fractals).

Buy/Sell Signals:

Buy Signal: Triggered when the candle closes above the most recent down fractal.

Sell Signal: Triggered when the candle closes below the most recent up fractal.

Signals alternate — a Buy must follow a Sell and vice versa to reduce noise.

Signal Labels:

"BUY" label appears below the candle in green.

"SELL" label appears above the candle in red.

Alerts:

Real-time alerts are available for both Buy and Sell signals via alertcondition().

📌 Use Case:
This indicator can help you:

Detect short-term reversals.

Confirm breakouts or structure shifts.

Time entries with clear logic based on price action.