yamaa As a clinical trial statistician or programmer, answer two short questions in Your review: the task and the inputs. Agreeing with both approves this benchmark; disagreeing with either needs a comment. Propose a fix with the Edit button on any source file, or add it to your comments.
We suggest spending no more than 5 minutes on a review. The other tabs beside Your review are background for assessment, not under review.
Summary
EditUnder reviewWhat this benchmark meansREADME.mdPublic entries: Python and R. Passing coverage requires an installed inventory.
Goal: derive body surface area (BSA) for each subject from
collected height and weight.
Input: demographic records carrying collected height
(HEIGHTCM) and weight (WEIGHTKG).
Variables:
BSAwould contain body surface area in square meters by the Mosteller formula: height in centimeters (HEIGHTCM) times weight in kilograms (WEIGHTKG), divided by3600, then square-rooted; missing when either measurement is missing.
Note: when height times weight is negative, as with a negative weight, the area has no real value. Any answer would be invented rather than derived, so the run fails and no artifact is accepted.
How to fix
Confirm and correct the negative weight in the source when it is a data-entry error. If the analysis explicitly treats a non-positive height or weight as unusable, encode that policy and return missing instead of evaluating the square root:
derivation:
case:
- when: "HEIGHTCM > 0 AND WEIGHTKG > 0"
then: "SQRT(HEIGHTCM * WEIGHTKG / 3600)"
With no otherwise, an invalid measurement produces missing.
Expected failure
Editthe run is rejected; no artifact is acceptedexpected/error.yaml- phase
- derivation
- condition
- sqrt_of_negative
- rule
- FORMULA-15
expected/error.yaml
phase: derivation
condition: sqrt_of_negative
spec_paths:
- columns.BSA.derivation
rule: FORMULA-15
context:
expr: "SQRT(HEIGHTCM * WEIGHTKG / 3600)"
keys:
- STUDYID: PILOT7
USUBJID: P7-752
Inputs
Under review1 source fileinput/dm.csv
Edit2 rows| STUDYID | USUBJID | HEIGHTCM | WEIGHTKG |
|---|---|---|---|
| PILOT7 | 168 | 64 | |
| PILOT7 | 175 | -70 |
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 | BSA | Body Surface Area (m2) | numeric | Compute SQRT(HEIGHTCM * WEIGHTKG / 3600). | 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 |