Clayton Young 509190118f fix(examples): correct quantile indices, variable shadowing, and test design in anomaly + covariates examples ...

Anomaly detection fixes:
- Fix critical quantile index bug: index 0 is mean not q10; correct indices are q10=1, q20=2, q80=8, q90=9
- Redesign test: use all 36 months as context, inject 3 synthetic anomalies into future
- Result: 3 CRITICAL detected (was 11/12 — caused by test-set leakage + wrong indices)
- Update severity labels: CRITICAL = outside 80% PI, WARNING = outside 60% PI

Covariates fixes:
- Fix variable-shadowing bug: inner dict comprehension overwrote outer loop store_id
  causing all stores to get identical covariate arrays (store_A's price for everyone)
- Give each store a distinct price baseline (premium $12, standard $10, discount $7.50)
- Trim CONTEXT_LEN from 48 → 24 weeks; CSV now 108 rows (was 180)
- Add NOTE ON REAL DATA comment: temp file pattern for large external datasets

Both scripts regenerated with clean outputs.

2026-02-23 07:43:04 -05:00

359 KiB

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