Description
Scale nonnegative localServices by basePopulation/localPopulation, both positive.
Population indicators depend on compatible boundaries, time periods, counted groups, and denominator choices. A share or density can change when exclusions or daytime populations change, even without arithmetic error.
Scale nonnegative localServices by basePopulation/localPopulation, both positive.
When to use this tool
Use Neighborhood Service Per Capita Gap when you need one transparent population-accounting component.
How to use the tool and how it works
- Enter localServices, localPopulation, benchmarkPerBase, basePopulation. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read localPerBase, gap, servicesForBenchmark. Use the output convention below.
Scale nonnegative localServices by basePopulation/localPopulation, both positive. Subtract nonnegative benchmarkPerBase and compute localPopulation × benchmark/basePopulation for servicesForBenchmark.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| localServices | Local Services | Required. Finite number; minimum 0. |
| localPopulation | Local Population | Required. Finite number; strictly above 0. |
| benchmarkPerBase | Benchmark Per Base | Required. Finite number; minimum 0. |
| basePopulation | Base Population | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| localPerBase | Local Per Base | Required. Finite number. |
| gap | Signed difference under the stated subtraction order. | Required. Finite number. |
| servicesForBenchmark | Services For Benchmark | Required. Finite number. |
{
"input": {
"localServices": 4,
"localPopulation": 2000,
"benchmarkPerBase": 3,
"basePopulation": 1000
},
"output": {
"localPerBase": 2,
"gap": -1,
"servicesForBenchmark": 6
}
}Limitations and assumptions
- Service definitions and population bases must match; the benchmark is supplied and does not establish service adequacy, entitlement, or actual access.
- 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
Review source definitions, geography, temporal alignment, and uncertainty before making a demographic or service-access conclusion.
References
Similar or alternative tools
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