Worker Lifespan Season Weeks Estimate Calculator
Observed independently age-marked seasonal worker cohort with completed lifespan and right-censored minimum ages retained; completed mean is not unbiased full-cohort survival. With no completed lifespan, the explicit false evidence flag distinguishes the zero mean placeholder. Caller independently verifies strain, site, protocol and evidence; not colony-health or biological lifespan prediction.
Description
Observed worker lifespan distinguishes confirmed deaths from bees still alive when observed.
Observed worker lifespan distinguishes confirmed deaths from bees still alive when observed.1
Completed-only averages differ from survival estimates that account for right censoring. Use Worker Lifespan Season Weeks Estimate Calculator to evaluate the supplied inputs under the model explained below.
When to use Worker Lifespan Season Weeks Estimate Calculator
Use Worker Lifespan Season Weeks Estimate Calculator to evaluate the supplied inputs under the model explained below. Establish the units, measurement scope and model assumptions before entering values.
How to use Worker Lifespan Season Weeks Estimate Calculator and understand its results
- Establish the units, measurement scope and model assumptions before entering values.
- Enter Observed worker age weeks, Independently confirmed death flags using the field table and validation rules below, then run the tool.
- Read Completed observed lifespans weeks, Right censored minimum ages weeks, Mean completed observed weeks, Has completed lifespan observations; interpret the units, signs, ordering and unknown-value placeholders described below.
- Correct reported input errors and rerun. Apply successful results according to their specific meanings and check the assumptions before using them in a decision.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| observedWorkerAgeWeeks | Observed worker age weeks | array of number | Required; constraints below |
| independentlyConfirmedDeathFlags | Independently confirmed death flags | array of number | Required; constraints below |
Enter nonempty aligned nonnegative observed ages in weeks and binary independently confirmed-death flags. Return confirmed-dead ages as completed lifespans and other ages as right-censored minima. Mean uses completed lifespans only; with none it returns zero plus hasCompleted=false. That zero is a placeholder, not a zero lifespan estimate. No seasonal defaults or survival-curve estimator is installed.
completed=ages with deathFlag1; censored=ages with flag0; meanCompleted=mean(completed) or 0 placeholder Use the field order, units and branch conditions described above.
| Output field | Meaning | Value type |
|---|---|---|
| completedObservedLifespansWeeks | Completed observed lifespans weeks | array of number |
| rightCensoredMinimumAgesWeeks | Right censored minimum ages weeks | array of number |
| meanCompletedObservedWeeks | Mean completed observed weeks | number |
| hasCompletedLifespanObservations | Has completed lifespan observations | boolean |
{
"input": {
"observedWorkerAgeWeeks": [
2,
4,
6
],
"independentlyConfirmedDeathFlags": [
1,
1,
0
]
},
"output": {
"completedObservedLifespansWeeks": [
2,
4
],
"rightCensoredMinimumAgesWeeks": [
6
],
"meanCompletedObservedWeeks": 3,
"hasCompletedLifespanObservations": true
}
}Limitations and assumptions
Completed-only averages differ from survival estimates that account for right censoring. Apply the exact scope and assumptions explained above.
All listed fields require explicit values. Unexpected fields, incorrect types, nonfinite numbers and sparse arrays fail validation. Domain-specific bounds, alignments and supported tokens are explained above; extremely large inputs or outputs can also be rejected. Input errors differ from successful false results, empty match lists and unknown-evidence placeholders.
Alternative or Complementary methods
Use Winter Bee Lifespan Months Lookup for a related task: Winter-worker longevity varies with population and observation method.
Use Colony Population Per Box Depth Lookup for a related task: Adult population estimates depend on observations and a defined box-depth reference.
References
Similar or alternative tools
- Winter Bee Lifespan Months Lookup
Winter-worker longevity varies with population and observation method.
- Colony Population Per Box Depth Lookup
Adult population estimates depend on observations and a defined box-depth reference.