FA-100030 / Evaluation metric aggregation / Member archive
Row-normalized confusion cells use column totals · case 05
Row-normalized confusion cells use column totals.
Case contract
Return a square row-normalized confusion matrix in supplied label order; a zero-support row is all zeros.
Why this case matters
A small explicit evaluation contract makes aggregation behavior reproducible across labeled examples.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| row distributions | [[1.0, 1.0], [0.0, 0.5]] | [[0.5, 0.5], [0, 1]] | Failed |
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