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EQUIPOP: Stata module to construct individualized population-based spatial contexts

Author

Listed:
  • John Östh

    (Oslo Metropolitan University)

Programming Language

Abstract

equipop constructs individualized, or bespoke, spatial contexts around every observation in a georeferenced dataset. Its distinctive feature is that neighbourhood size can be set by accumulated reference population rather than by a fixed number of rows or a common geographical radius: an observation representing 600 people contributes 600 towards a requested k, so the distance needed to reach k varies with local density. The command returns that geographical reach together with contextual population totals and, when requested, group counts and shares. Several population thresholds and fixed radii may be evaluated in one call. Optional distance decay supports negative-exponential, exponential-normal, exponential-square-root, log-normal and power families, with a common bandwidth or one that varies across observations. Further options control grid resolution, treatment of the origin cell, allocation of population at the neighbourhood boundary and coordinate projection.

Suggested Citation

  • John Östh, 2026. "EQUIPOP: Stata module to construct individualized population-based spatial contexts," Statistical Software Components S459913, Boston College Department of Economics.
    • Handle: RePEc:boc:bocode:s459913
    Note: This module should be installed from within Stata by typing "ssc install equipop". The module is made available under terms of the MIT license (https://opensource.org/licenses/MIT).
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    File URL: http://fmwww.bc.edu/repec/bocode/e/equipop.ado
    File Function: program code
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    File URL: http://fmwww.bc.edu/repec/bocode/e/equipop_knn.ado
    File Function: program code
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    File URL: http://fmwww.bc.edu/repec/bocode/e/equipop_run.ado
    File Function: program code
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    File URL: http://fmwww.bc.edu/repec/bocode/e/equipop.sthlp
    File Function: help file
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    File URL: http://fmwww.bc.edu/repec/bocode/e/equipop_example.do
    File Function: program code
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    File URL: http://fmwww.bc.edu/repec/bocode/e/equipop_test_data.dta
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