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| og:image:alt | Summary
Add base_period parameter to CallawaySantAnna matching R's did::att_gt() API
Implement "varying" mode (default): pre-treatment uses t-1 as base (consecutive comparisons)
Impl... |
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| Add base_period parameter to CallawaySantAnna for pre-treatment effects | https://github.com/igerber/diff-diff/pull/97/commits/673a83050145aa6cef24fade57f6e350f5afa89c |
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| review: fix base_period fallback and add validation | https://github.com/igerber/diff-diff/pull/97/commits/c40c46cfb8e274e9997c4dfe21e07a3fed40e879 |
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| #97 | https://github.com/igerber/diff-diff/pull/97 |
| review round 2: NaN propagation for empty post-treatment | https://github.com/igerber/diff-diff/pull/97/commits/cbc28dd50bba61b97ebebec079d8cfc47135d93d |
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| review round 3: anticipation filtering and NaN t_stat | https://github.com/igerber/diff-diff/pull/97/commits/39b6f93e15b931d4e6a51cb9e6435a4a4c6f3faf |
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| review round 5: not-yet-treated control group overlap | https://github.com/igerber/diff-diff/pull/97/commits/021bd6676e0746cccb81871341f516dc076dc733 |
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| #97 | https://github.com/igerber/diff-diff/pull/97 |
| review round 6: clarify ATT(g,t) equation documentation | https://github.com/igerber/diff-diff/pull/97/commits/78cdffb8b2bc76a4dab039fcbf763ac310e25f29 |
| 78cdffb | https://github.com/igerber/diff-diff/pull/97/commits/78cdffb8b2bc76a4dab039fcbf763ac310e25f29 |
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Jan 22, 2026
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| Add pre-merge-check skill and improve PR review workflow | https://github.com/igerber/diff-diff/commit/be8997430edacefbcc36f9413ff1ec6f54889528 |
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Jan 22, 2026
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Add pre-merge-check skill and improve PR review workflow
#98
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Jan 31, 2026
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| Fix NaN t-statistics across 7 locations for consistent undefined infe… | https://github.com/igerber/diff-diff/commit/1b97f787004720177311b34ca5170377254f4493 |
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Jan 31, 2026
| https://github.com/igerber/diff-diff/pull/97#ref-pullrequest-3880050689 |
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Fix NaN t-statistics across 7 locations for consistent undefined inference
#118
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