sppt: Spatial Point Pattern Test for Areal Data

Implements the area-based nonparametric spatial point pattern test of Andresen (2009) <doi: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) <doi: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.

Version:	1.0.0
Depends:	R (≥ 4.1.0)
Imports:	classInt, ggplot2 (≥ 3.5.0), ggspatial, graphics, grDevices, Matrix, rlang, scales, sf, spdep, stats, tools, utils
Suggests:	knitr, rmarkdown, testthat (≥ 3.0.0)
Published:	2026-10-27
DOI:	10.32614/CRAN.package.sppt (may not be active yet)
Author:	Martin A. Andresen [aut, cre, cph]
Maintainer:	Martin A. Andresen <andresen at sfu.ca>
License:	MIT + file LICENSE
NeedsCompilation:	no
Citation:	sppt citation info
Materials:	README, NEWS
CRAN checks:	sppt results

Documentation:

Reference manual:	sppt.html , sppt.pdf
Vignettes:	Comparing two spatial patterns with sppt() (source, R code) Longitudinal change with sppt_longitudinal() (source, R code)

Downloads:

Package source:	sppt_1.0.0.tar.gz
Windows binaries:	r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries:	r-release (arm64): not available, r-oldrel (arm64): sppt_1.0.0.tgz, r-release (x86_64): not available, r-oldrel (x86_64): not available

Linking:

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