Description
Scale each events/population ratio by rateBase and return firstRate-secondRate.
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.
Scale each events/population ratio by rateBase and return firstRate-secondRate.
When to use this tool
Use Cross Country Per Capita Rate Base Factor when you need a population count or share on a declared inclusion basis.
How to use the tool and how it works
- Enter firstEvents, firstPopulation, secondEvents, secondPopulation, rateBase. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read firstRate, secondRate, gap. Use the output convention below.
Require nonnegative events and positive populations and rateBase. Scale each events/population ratio by rateBase and return firstRate-secondRate.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| firstEvents | First Events | Required. Finite number; minimum 0. |
| firstPopulation | First Population | Required. Finite number; strictly above 0. |
| secondEvents | Second Events | Required. Finite number; minimum 0. |
| secondPopulation | Second Population | Required. Finite number; strictly above 0. |
| rateBase | Rate Base | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| firstRate | First Rate | Required. Finite number. |
| secondRate | Second Rate | Required. Finite number. |
| gap | Difference on the stated unit and subtraction basis. | Required. Finite number. |
{
"input": {
"firstEvents": 20,
"firstPopulation": 1000,
"secondEvents": 45,
"secondPopulation": 3000,
"rateBase": 1000
},
"output": {
"firstRate": 20,
"secondRate": 15,
"gap": 5
}
}Limitations and assumptions
- Event definitions, population coverage, periods, and reference bases must match; this is not age standardization, statistical comparison, or a causal explanation.
- 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
- Country Coverage Denominator Share
Include unknown in the denominator only when requested, divide when positive, otherwise return zero with defined false.
- Global Trade Country Share Term
Return the separate shares and exportShare-importShare.