Iteration 08 — `bar_spectral_entropy` PASS

Inouye et al. 1991 · rolling 200-bar window · updated 2026-06-03 03:46 UTC

1 · Context of work

Candidate

bar_spectral_entropy (antropy)

Frozen test constants

sf=1.0 · method=fft · normalize=True

Axis-2 status

borderline — sf has no natural value for event-clocked bars; valid only in normalized form.

Window

rolling 200 bar closes (project-wide LOOKBACK)

Matrix version

CH_FEATURE_BANLIST.md @ d74f75e1 · FRAMEWORK.md Axis-1 (|ρ|≤0.85, R²≤0.85, h_norm≥0.05)

Substrate

opendeviationbar_cache.open_deviation_bars · 21 (symbol,threshold) × 10 slices · read-only

2 · Grounded this iteration

Valid cells

207

Slices completed

10 / 10

PASS / WATCH / BAN

207 / 0 / 0

Max |ρ| vs existing features

0.7706

Max combinatorial R²

0.6795

Min h_norm (mass-collapse guard)

1.0000

Gate: PASS = |ρ|≤0.85 AND R²≤0.85 AND h_norm≥0.05 across every valid bar set. Grounded — all valid cells PASS.

Most frequent worst competitors:

bar_katz_fd — appeared as worst competitor in 177 cell(s)
bar_petrosian_fd — appeared as worst competitor in 11 cell(s)
high — appeared as worst competitor in 4 cell(s)

3 · Next steps

This is the final candidate in the work-list. Next: run the cross-candidate matrix, then Stage 2 (convention ratification).

4 · Pending tasks

3 bar set(s) skipped (insufficient bars / empty cell).
Axis-2 BORDERLINE: sf has no natural value for event-clocked bars; valid only in normalized form.
Axis-2 final status deferred to Stage 2 (project-wide constant ratification, after the full family is evaluated).
Cross-candidate ρ/LOO-R² matrix (run_cross_candidate.py) must run before any PROMOTE — catches sibling clusters.

Generated by emit_iteration_html.py · spike_2026-06-02-entropy · raw per-cell verdicts in results/bar_spectral_entropy_slice*.jsonl (bigblack-only, not committed).

Iteration 08 — bar_spectral_entropy PASS

1 · Context of work

2 · Grounded this iteration

3 · Next steps

4 · Pending tasks

Iteration 08 — `bar_spectral_entropy` PASS