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# CITATION.cff file created with {cffr} R package
# See also: https://docs.ropensci.org/cffr/
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cff-version: 1.2.0
message: 'To cite package "sppt" in publications use:'
type: software
license: MIT
title: 'sppt: Spatial Point Pattern Test for Areal Data'
version: 1.0.0
doi: 10.1016/j.apgeog.2008.12.004
abstract: Implements the area-based nonparametric spatial point pattern test of Andresen
  (2009) <https://doi.org/10.1016/j.apgeog.2008.12.004> for comparing two spatial
  distributions of events aggregated to areal units, with the applications and extensions
  reviewed in Andresen (2016) <https://doi.org/10.1177/2059799116630659>. Unit-level
  inference uses bounded Monte Carlo bootstrap p-values, with marginal confidence
  interval overlap retained as an option. Global similarity is summarised by the robust
  S index, accompanied by a test of whether two patterns are more different than two
  realisations of a single process, and a test of the spatial arrangement of the differences.
  A longitudinal extension compares each period of a time series against a base period
  and classifies unit-level trajectories. Publication-ready maps can be redrawn with
  user-chosen layouts.
authors:
- family-names: Andresen
  given-names: Martin A.
  email: andresen@sfu.ca
  orcid: https://orcid.org/0000-0002-4767-7276
preferred-citation:
  type: article
  title: 'Testing for similarity in area-based spatial patterns: A nonparametric Monte
    Carlo approach'
  authors:
  - family-names: Andresen
    given-names: Martin A.
    email: andresen@sfu.ca
    orcid: https://orcid.org/0000-0002-4767-7276
  journal: Applied Geography
  year: '2009'
  volume: '29'
  issue: '3'
  doi: 10.1016/j.apgeog.2008.12.004
  start: '333'
  end: '345'
repository: https://cran.r-universe.dev
commit: b2bd5acdff0ecb592a1f354619834b845444e669
date-released: '2026-10-27'
contact:
- family-names: Andresen
  given-names: Martin A.
  email: andresen@sfu.ca
  orcid: https://orcid.org/0000-0002-4767-7276
references:
- type: article
  title: 'Testing longitudinal change in spatial distributions and patterns: An extension
    of the spatial point pattern test'
  authors:
  - family-names: Andresen
    given-names: Martin A.
  journal: Annals of the American Association of Geographers
  year: '2026'
  notes: In press