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gridmappr: An R package for creating small multiple gridmap layouts

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Listed:
  • Roger Beecham
  • Martijn Tennekes
  • Jo Wood

Abstract

We present gridmappr , an R package that automates the process of generating gridmaps – small multiple data graphics of regular size, laid out with an approximate geographic arrangement. Given a set of real geographic point locations, gridmappr allocates points to a regularly sized grid of stated row–column dimensions. This allocation is constrained such that the distance between points in real and grid space is minimised and with a parameter that affects how compactly points are allocated to the regular grid. For geographies with features such as large bodies of water, fixed spacers can be introduced – reserved cells that cannot be allocated points. Layout examples are presented using different parameterisations, and code for generating a family of information-rich glyphmap and origin-destination maps is demonstrated using standard ggplot2.

Suggested Citation

  • Roger Beecham & Martijn Tennekes & Jo Wood, 2026. "gridmappr: An R package for creating small multiple gridmap layouts," Environment and Planning B, , vol. 53(3), pages 487-493, March.
    • Handle: RePEc:sae:envirb:v:53:y:2026:i:3:p:487-493
    DOI: 10.1177/23998083251374737
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    1. Roger Beecham & Nick Williams & Alexis Comber, 2020. "Regionally-structured explanations behind area-level populism: An update to recent ecological analyses," PLOS ONE, Public Library of Science, vol. 15(3), pages 1-20, March.
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