Module iqr 

anomaly_score_iqr window function — IQR-based anomaly scoring.

Algorithm:

• Compute Q1 (25th percentile) and Q3 (75th percentile)
• IQR = Q3 - Q1
• Lower fence = Q1 - k * IQR, Upper fence = Q3 + k * IQR
• If value is outside fences, score = |distance to nearest fence| / IQR
• Otherwise, score = 0.0

When IQR = 0 (constant quartiles), returns 0.0 if value is on the fence, or +inf if value is outside.

Structs

AnomalyScoreIqr

AnomalyScoreIqrEvaluator 🔒

Constants

MIN_SAMPLES 🔒

Minimum valid samples for IQR (linear-interpolated Q1 != Q3 is possible at n >= 3).