Here is an attempt calculate Average Zigzag Range (AZR). This can be used similar to ATR. Using AZR instead of ATR for trailing stop calculation may yield better outcome in trend trading.
Logic is simple.
Calculate zigzag based on ZigzagLength
Calculate distance between each zigzag pivots
Calculate simple moving average of last MALength pivots
Use DoubleMA option to further smooth AZR using a Secondary Moving Average
Release Notes
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Added option to print separate AZR for Zigzag Highs and Lows