FA-12670 / Causal analysis data contracts / Member archive

Exposure mapping includes the focal unit as its own peer · case 05

Exposure mapping includes the focal unit as its own peer.

Member previewVariant 5 · 3 implementations · 6 checks per implementation

Case contract

Assignment maps unit names to 0/1; neighbors may repeat and contain self. Return [own arm, number of unique treated other neighbors]. All names exist.

Why this case matters

A deterministic synthetic study model isolates this data-contract defect; outputs alone establish no real-world causal identification.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
self exposure	`[1, 1]`	`[1, 0]`	Failed

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