Survey Phase 7: CS IPW/DR covariates, repeated cross-sections, HonestDiD survey variance#240

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igerber wants to merge 27 commits intomainfrom

survey-phase-seven

Commits on Mar 28, 2026

Survey Phase 7: CS IPW/DR covariates, repeated cross-sections, HonestDiD survey variance

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Commits on Mar 29, 2026

Address CI review: RCS IF corrections, aggregation weights, replicate VCV, panel on results

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Fix DR RC normalizer mismatch, holistic RCS cohort-mass weighting, unequal-count tests

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Rewrite RC reg/DR to match DRDID::reg_did_rc and DRDID::drdid_rc formulas

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Fix bootstrap RCS cohort-mass weighting, reset stale event-study VCV

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Clear analytical event_study_vcov when bootstrap overwrites event-study SEs

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Fix RC IF normalization scaling: M1 uses n_all denominator, PS M2 uses sum not mean

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Document RCS IF phi=psi/n convention, add analytical-vs-bootstrap SE convergence test

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Refactor RC IFs to R's psi convention, fix HonestDiD VCV subsetting

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Resolve merge conflict, match R colMeans convention in panel IPW/DR M2 gradients

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Match R's H/n, asy_rep/n, colMeans convention for panel PS corrections; fix VCV index subsetting

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Fix VCV index alignment, add stationarity warning for panel=False

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Document panel DR control-augmentation normalization deviation from DRDID

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Warn on non-universal base period in HonestDiD CS path, update tests

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Fix panel M2 full-sample colMeans, add HonestDiD consecutive event-time guard

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Fix HonestDiD grid validator for reference-period gap, defensive bootstrap for zero-mass cells

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HonestDiD: raise ValueError on non-consecutive event-time grid (was warning)

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HonestDiD: validate full grid around reference period, not just within-block

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Fix HonestDiD: reference-aware pre/post split, replicate df=0 sentinel

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Fix _estimate_max_pre_violation to use reference-aware pre_periods

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Survey Phase 7: CS IPW/DR covariates, repeated cross-sections, HonestDiD survey variance#240

Survey Phase 7: CS IPW/DR covariates, repeated cross-sections, HonestDiD survey variance#240
igerber wants to merge 27 commits intomainfrom
survey-phase-seven

Commits on Mar 28, 2026

Survey Phase 7: CS IPW/DR covariates, repeated cross-sections, HonestDiD survey variance

Commits on Mar 29, 2026

Address CI review: RCS IF corrections, aggregation weights, replicate VCV, panel on results

Fix DR RC normalizer mismatch, holistic RCS cohort-mass weighting, unequal-count tests

Rewrite RC reg/DR to match DRDID::reg_did_rc and DRDID::drdid_rc formulas

Fix bootstrap RCS cohort-mass weighting, reset stale event-study VCV

Clear analytical event_study_vcov when bootstrap overwrites event-study SEs

Fix RC IF normalization scaling: M1 uses n_all denominator, PS M2 uses sum not mean

Document RCS IF phi=psi/n convention, add analytical-vs-bootstrap SE convergence test

Refactor RC IFs to R's psi convention, fix HonestDiD VCV subsetting

Resolve merge conflict, match R colMeans convention in panel IPW/DR M2 gradients

Match R's H/n, asy_rep/n, colMeans convention for panel PS corrections; fix VCV index subsetting

Fix VCV index alignment, add stationarity warning for panel=False

Document panel DR control-augmentation normalization deviation from DRDID

Warn on non-universal base period in HonestDiD CS path, update tests

Fix panel M2 full-sample colMeans, add HonestDiD consecutive event-time guard

Fix HonestDiD grid validator for reference-period gap, defensive bootstrap for zero-mass cells

HonestDiD: raise ValueError on non-consecutive event-time grid (was warning)

HonestDiD: validate full grid around reference period, not just within-block

Fix HonestDiD: reference-aware pre/post split, replicate df=0 sentinel

Fix _estimate_max_pre_violation to use reference-aware pre_periods

Commits on Mar 30, 2026

Document panel IPW/DR PS correction scaling with bootstrap convergence proof

HonestDiD: raise on no pre-period coefficients in CS path, remove overall_se fallback

Fix HonestDiD varying-base split: use t<0/t>=0 when no reference marker

Fix reference-period detection (effect=0.0+NaN SE), warn on bootstrap diagonal VCV

Relabel IF scaling as implementation choice (not deviation), fix control label

Fix panel M2 scaling: revert to np.mean over control rows (n_c denominator)

Match R exactly: H = X'WX (no /n), asy_rep = score @ inv(H) (no /n)