Adds section headers and explanatory comments throughout the existing
tiers, plus new cells running compute_event_observables_pl and the four
event-level shower plots. Notebook outputs reflect the user's own re-run.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Adds plot_kl_bars/plot_kl_bars_pl (numpy/polars variants) for ranking which
target dimension or pdg/material stratum drives KL regressions, with the
same kl*n group capping as plot_marginals. Switches existing histogram
plots to step-type/log-scale. Adds sample_frac to load_predicted_local for
subsampling large predict parquets.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
larsandClaude Sonnet 4.6