Description
Return current population share and share after each supplied fractional growth factor.
Population and eligibility summaries depend on who enters the numerator and denominator. Weighted shares can differ from unweighted averages, and source coverage is a different property from representativeness or outcome quality.
Return current population share and share after each supplied fractional growth factor.
When to use this tool
Use World Population One Region Share when you need a population count or share on a declared inclusion basis.
How to use the tool and how it works
- Enter regionPopulation, worldPopulation, regionGrowth, worldGrowth. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read share, nextShare. Use the output convention below.
Require positive worldPopulation, regionPopulation within it, regionGrowth at least -1, and worldGrowth greater than -1. Return current population share and share after each supplied fractional growth factor.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| regionPopulation | Region Population | Required. Finite number; minimum 0. |
| worldPopulation | World Population | Required. Finite number; strictly above 0. |
| regionGrowth | Region Growth | Required. Finite number; minimum -1. |
| worldGrowth | World Growth | Required. Finite number; strictly above -1. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| share | Dimensionless share on the numerator and denominator basis stated above. | Required. Finite number. |
| nextShare | Next Share | Required. Finite number. |
{
"input": {
"regionPopulation": 100,
"worldPopulation": 1000,
"regionGrowth": 0.1,
"worldGrowth": 0.05
},
"output": {
"share": 0.1,
"nextShare": 0.10476190476190478
}
}Limitations and assumptions
- NextShare is not constrained to one and can expose incompatible growth assumptions; no population forecast, demographic model, or source consistency is established.
- 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
Reconcile the source population and weighting scheme before comparison. Use a complete statistical analysis when sampling uncertainty, demographic interpretation, or causal explanation matters.
References
Similar or alternative tools
- Cross Country Per Capita Rate Base Factor
Scale each events/population ratio by rateBase and return firstRate-secondRate.
- Country Coverage Denominator Share
Include unknown in the denominator only when requested, divide when positive, otherwise return zero with defined false.