Find weeks whose rateKey value has a z-score ≥ threshold against the baseline computed across all buckets (the MEP's own rolling baseline within the period).
rateKey
threshold
Output of bucketByWeek.
Which rate to evaluate ('defectionRate' or 'abstentionRate').
'defectionRate'
'abstentionRate'
Minimum z-score that triggers an anomaly (default DEFAULT_Z_SCORE_THRESHOLD).
Outlier weeks (chronological order).
Find weeks whose
rateKeyvalue has a z-score ≥thresholdagainst the baseline computed across all buckets (the MEP's own rolling baseline within the period).