ZigZag Swing Pattern Classifier

Complete taxonomy for classifying ZigZag swing patterns by structure and market regime. Every confirmed ZigZag sequence maps to exactly one variant — no gaps, no overlaps.

Self-Evolving Skill: This skill improves through use. If instructions are wrong, parameters drifted, or a workaround was needed — fix this file immediately, don't defer. Only update for real, reproducible issues.

When to Use

• Classifying a confirmed L₀→H₁→L₂ (two-pivot) or L₀→H₁→L₂→H₃ (three-pivot) swing
• Looking up market regime implications of a specific pattern
• Answering "how many distinct patterns exist?" and proving exhaustiveness
• Implementing pattern labeling in code (Rust qta crate, Python pipelines)
• Understanding the epsilon tolerance band that defines "equal"
• Applying Freedman-Diaconis binning for sub-classification depth

Notation (Single Source of Truth)