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Summary
EditUnder reviewWhat this benchmark meansREADME.mdPublic entries: Python and R. Passing coverage requires an installed inventory.
Goal: record each subject's date of death (DTHDT) and
last-visit study day (LSTVSDY) from collected demographics, and
keep the earlier of the two in FSTALVDT as the first known alive
date.
Input: collected demographics carrying a death date-time
(DTHDTC) and the last-visit study day (LSTVSDY).
Variables:
DTHDTwould be the date of death taken fromDTHDTC, missing when no death was recorded.LSTVSDYwould be the study day of the last visit, counting days, not dates.FSTALVDTwould be the first known alive date: the earlier of the death date and the last-visit date, or the one present when the other is missing. A calendar date and a day count have no common order, so there is no earlier of the two: the run is rejected before any data is read and no artifact is accepted.
How to fix
Decide which date the study reports, then state it in dates. Take
the last contact from the date the visit was collected on, read into
a date column (LSTCONDT here), not from its study day, so both
sides are dates:
- name: FSTALVDT
type: date
derivation:
least:
sources: [DTHDT, LSTCONDT]
When only the day count exists, keep the count as a count instead of forcing it into a date column.
Expected failure
Editthe run is rejected; no artifact is acceptedexpected/error.yaml- phase
- validation
- condition
- incomparable_sources
- rule
- VALUE-19
expected/error.yaml
phase: validation
condition: incomparable_sources
spec_paths:
- columns.FSTALVDT.derivation.least
rule: VALUE-19
context:
sources: [DTHDT, LSTVSDY]
types: [date, int]
Inputs
Under review1 source fileinput/dm.csv
Edit6 rows| STUDYID | USUBJID | DTHDTC | LSTVSDY |
|---|---|---|---|
| YAMAA-01 | 2025-03-14 | 74 | |
| YAMAA-01 | — | 92 | |
| YAMAA-01 | 2025-01-02 | — | |
| YAMAA-01 | — | 1 | |
| YAMAA-01 | 2025-06-30 | 181 | |
| YAMAA-01 | — | — |
Unexpected Output
Under reviewNo artifact is producedNo fixture files in this directory.
Human review and assessment
| Dataset Name | Variable Name | Variable Label | Type | Codelist/Controlled Terms | Core | Computational Method | Origin |
|---|---|---|---|---|---|---|---|
| ADSL | STUDYID | Study Identifier | character | Copy value from DM.STUDYID. | Predecessor | ||
| ADSL | USUBJID | Unique Subject Identifier | character | Copy value from DM.USUBJID. | Predecessor | ||
| ADSL | DTHDT | Date of Death | numeric | ISO 8601 | Copy value from DM.DTHDTC. | Predecessor | |
| ADSL | LSTVSDY | Last Visit Study Day | numeric | Copy value from DM.LSTVSDY. | Predecessor | ||
| ADSL | FSTALVDT | First Known Alive Date | numeric | ISO 8601 | Least of DTHDT and LSTVSDY. | Derived |
| Version | Date | Author | Description | Reviewer | Sign-off |
|---|---|---|---|---|---|
| 1.7 | 2026-10-20 | yamaa docs build | Read a specification in the 1.0 surface as its 0.5 counterpart; state that missing values stay missing where a mapping declares no missing handler, and leave out a declared missing answer that restates a handler's default | ||
| 1.6 | 2026-10-17 | yamaa docs build | Describe collected date parts written as ISO 8601 date text and times of day counted in seconds since midnight | ||
| 1.5 | 2026-10-17 | yamaa docs build | Name collected precision in words instead of letter codes; state imputation fallbacks, minimum source precision, bounds ignored outside the collected period, and invalid text with no handler as an error; describe date and datetime shifts, imputation flag codes, and partial text giving no date part | ||
| 1.4 | 2026-10-15 | yamaa docs build | State datetime precision codes through the hour and minute, and complete only the time parts a collected datetime lacks | ||
| 1.3 | 2026-09-29 | yamaa docs build | Show study codelist names, external dictionaries, and ISO 8601 formats in variable rows; list the document's codelist values and metadata | ||
| 1.2 | 2026-09-29 | yamaa docs build | Classify ADaM copies from a declared input as Predecessor and recodes as Derived, and SDTM recodes of locally derived columns as Derived | ||
| 1.1 | 2026-09-29 | yamaa docs build | Resolve lookups into the donor record they select, and give every derivation shape a plain-language rule instead of its raw YAML | ||
| 1.0 | yamaa docs build | Initial generation from spec.yaml |