griddy: Geospatial Distribution Dynamics for Simple Features

Tools for exploratory geospatial distribution dynamics with 'sf' objects and tidy data. Provides pooled and time-specific classification of longitudinal spatial values, classic discrete Markov transition matrices, spatial Markov matrices conditioned on spatial-lag classes, endpoint and adjacent rank mobility summaries, and 'ggplot2' visualizations. Methods follow Rey (2001) <doi:10.1111/j.1538-4632.2001.tb00444.x> and Rey et al. (2016) <doi:10.1007/s10109-016-0234-x>; design is inspired by the Python 'PySAL' 'giddy' package <https://pysal.org/giddy/>.

Version:	0.1.0
Depends:	R (≥ 4.2)
Imports:	dplyr, ggplot2, rlang, scales, sf, spdep, tibble, tidyr
Suggests:	cancensus, knitr, microbenchmark, pkgdown, rmarkdown, sfdep, spData, testthat (≥ 3.0.0), tidycensus
Published:	2026-05-30
DOI:	10.32614/CRAN.package.griddy
Author:	Dmitry Shkolnik [aut, cre]
Maintainer:	Dmitry Shkolnik <shkolnikd at gmail.com>
BugReports:	https://github.com/dshkol/griddy/issues
License:	MIT + file LICENSE
URL:	https://github.com/dshkol/griddy, https://dshkol.github.io/griddy/
NeedsCompilation:	no
Language:	en-US
Citation:	griddy citation info
Materials:	README, NEWS
CRAN checks:	griddy results

Documentation:

Reference manual:	griddy.html , griddy.pdf
Vignettes:	Geospatial Distribution Dynamics With griddy (source, R code)

Downloads:

Package source:	griddy_0.1.0.tar.gz
Windows binaries:	r-devel: griddy_0.1.0.zip, r-release: not available, r-oldrel: griddy_0.1.0.zip
macOS binaries:	r-release (arm64): griddy_0.1.0.tgz, r-oldrel (arm64): griddy_0.1.0.tgz, r-release (x86_64): griddy_0.1.0.tgz, r-oldrel (x86_64): griddy_0.1.0.tgz

Linking:

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