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Summary
EditUnder reviewWhat this benchmark meansREADME.mdPublic entries: Python and R. Passing coverage requires an installed inventory.
Goal: fill the analysis value (AVAL) of each planned vital-sign
visit with the value collected there, or carry forward the latest
earlier collected value for the same subject and parameter.
Input: planned vital-sign assessments, one record per subject,
parameter, and planned visit number (AVISITN), each holding a
collected value or a gap.
Variables:
AVALwould be the value collected at the visit when there is one, otherwise the latest earlier collected value for the same subject and parameter, and blank when no earlier value exists. Zero is a collected value, not a gap.
The input covers the cases that matter: a leading gap at visit 0, a trailing gap after the last collected value, a collected zero that must not be confused with a gap, and a parameter collected nowhere. But carrying a value forward needs an order that says which visits count as earlier, and the window names none, so the run is rejected before any data is read and no artifact is accepted.
How to fix
Name the assessment order in the window, here the planned visit number:
locf:
source: AVALCOL
window:
group_by: [USUBJID, PARAMCD]
order_by: [AVISITN]
Expected failure
Editthe run is rejected; no artifact is acceptedexpected/error.yaml- phase
- validation
- condition
- window_order_by_required
- rule
- WINDOW-5
expected/error.yaml
phase: validation
condition: window_order_by_required
spec_paths:
- columns.AVAL.derivation.locf.window
rule: WINDOW-5
context:
operation: locf
Inputs
Under review1 source fileinput/vs.csv
Edit9 rows| USUBJID | PARAMCD | AVISITN | AVALCOL |
|---|---|---|---|
| SYSBP | 0 | — | |
| SYSBP | 1 | 5 | |
| SYSBP | 2 | — | |
| SYSBP | 3 | — | |
| SYSBP | 4 | 6 | |
| SYSBP | 1 | — | |
| SYSBP | 2 | 0 | |
| SYSBP | 3 | — | |
| DIABP | 1 | — |
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 |
|---|---|---|---|---|---|---|---|
| ADVS | USUBJID | Unique Subject Identifier | character | Copy value from VS.USUBJID. | Predecessor | ||
| ADVS | PARAMCD | Parameter Code | character | Copy value from VS.PARAMCD. | Predecessor | ||
| ADVS | AVISITN | Analysis Visit Number | numeric | Copy value from VS.AVISITN. | Predecessor | ||
| ADVS | AVAL | Analysis Value | numeric | Last observation carried forward from AVALCOL within each group of USUBJID, PARAMCD. | 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 |