Description
Apply a supplied research day-anchor offset without pregnancy dating or clinical assessment.
Pregnancy and birth research records distinguish observed and estimated values, dating anchors, day coordinates, time precision, clock offsets, and source permissions. A notation conversion or interval comparison does not determine a clinical date or validate consent. The supplied reference convention and uncertainty need to remain visible.
Apply a supplied research day-anchor offset without pregnancy dating or clinical assessment.
When to use this tool
Use Research Gestational Day Offset when you need this supplied research age, date, interval, clock, provenance, or record-rule calculation.
How to use the tool and how it works
- Enter recordedDay, suppliedAnchorOffset, targetDay. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read anchoredDay, targetGap. Use the output convention below.
Return anchoredDay=recordedDay+suppliedAnchorOffset and targetGap=anchoredDay-targetDay.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| recordedDay | Recorded Day | Required. Safe integer. |
| suppliedAnchorOffset | Supplied Anchor Offset | Required. Safe integer. |
| targetDay | Target Day | Required. Safe integer. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| anchoredDay | Anchored Day | Required. Safe integer. |
| targetGap | Target Gap | Required. Safe integer. |
{
"input": {
"recordedDay": 100,
"suppliedAnchorOffset": 14,
"targetDay": 110
},
"output": {
"anchoredDay": 114,
"targetGap": 4
}
}Limitations and assumptions
- Day coordinates and offset need one reference convention and may be signed. No actual gestational age, conception date, clinical dating anchor, or target recommendation is inferred.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use verified dates and sources together with the intended research or clinical assessment process. Check dating anchors, clock conventions, uncertainty, and whether a supplied reporting rule is appropriate for the question.
References
Similar or alternative tools
- Pregnancy Study Age Anchor Token
Audit a research age-anchor token and supplied day offset without deriving gestational age or clinical dating.
- Gestational Reference Day Gap
Compare explicit research gestational-day coordinates without dating a pregnancy or recommending care.