Description
Calculate concurrent-activity minutes as a share of observed time.
Aging research distinguishes participant and informant identities, calendar-month coordinates, time-use exposure and event/censoring status. Proxy responses and missing codes carry different meanings from direct observations. Local record summaries do not establish lifespan, legal status, accessibility or appropriate care.
Calculate concurrent-activity minutes as a share of observed time.
When to use this tool
Use Later Life Time Use Concurrent Activity Share when checking the stated aging-study record, timing, censoring or support convention.
How to use the tool and how it works
- Enter concurrentActivityMinutes, observedMinutes. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read fraction, remainder. Use the output convention below.
Require observedMinutes>0 and concurrentActivityMinutes within [0,observed]. Return concurrent/observed and observed-concurrent remainder.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| concurrentActivityMinutes | Concurrent Activity Minutes | Required. Finite number; minimum 0. |
| observedMinutes | Observed Minutes | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| fraction | Dimensionless fraction on the stated denominator, not a percentage number. | Required. Finite number. |
| remainder | Remainder | Required. Finite number. |
{
"input": {
"concurrentActivityMinutes": 30,
"observedMinutes": 120
},
"output": {
"fraction": 0.25,
"remainder": 90
}
}Limitations and assumptions
- Concurrent activity is a supplied category, not deduced from diaries; no health benefit or mutually exclusive activity classification 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 original records and suitable complete research methods; involve qualified health, accessibility or legal professionals for actual care or rights decisions.
References
Similar or alternative tools
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