Description
Return month-coordinate tenure and 12 × previousMoves/exposureMonths.
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.
Return month-coordinate tenure and 12 × previousMoves/exposureMonths.
When to use this tool
Use Residential Mobility Tenure Month Term when you need one transparent population-accounting component.
How to use the tool and how it works
- Enter moveInMonth, observationMonth, previousMoves, exposureMonths. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read tenureMonths, movesPerYear. Use the output convention below.
Require observationMonth no earlier than moveInMonth, nonnegative previousMoves, and positive exposureMonths. Return month-coordinate tenure and 12 × previousMoves/exposureMonths.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| moveInMonth | Move In Month | Required. Safe integer. |
| observationMonth | Observation Month | Required. Safe integer. |
| previousMoves | Previous Moves | Required. Safe integer; minimum 0. |
| exposureMonths | Exposure Months | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| tenureMonths | Tenure Months | Required. Safe integer. |
| movesPerYear | Moves Per Year | Required. Finite number. |
{
"input": {
"moveInMonth": 100,
"observationMonth": 130,
"previousMoves": 3,
"exposureMonths": 60
},
"output": {
"tenureMonths": 30,
"movesPerYear": 0.6
}
}Limitations and assumptions
- Month inputs are numeric coordinates rather than parsed dates; annualized moves use the supplied exposure, without modeling mobility or household stability.
- 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
- Residence Move Overlap Gap
Return their nonnegative overlap length and max(0, newStart-oldEnd) as gapDays.
- Migration Net Flow One Region Balance
Return births-deaths, arrivals-departures, and openingPopulation+births-deaths+arrivals-departures+signed reclassification, with other inputs nonnegative.