spatialRegroup: Iterative Spatial Regrouping of Administrative Units by Attributive Affinity

Evaluates the statistical coherence of existing administrative partitions (e.g. inter-municipal groupings, districts) by identifying spatial units whose attributive profile is more similar to a neighbouring group than to their own. Border units are iteratively reassigned to the group they are most affine with, based on Euclidean or Mahalanobis distance computed on user-supplied numeric variables, with optional per-variable weighting and standardisation. Spatial contiguity is enforced throughout: isolated candidates are reintegrated into their original group, disconnected fragments are resolved, and empty groups are restored. Convergence is monitored via an eta-squared cohesion criterion. The resulting partition can be compared to the original administrative delineation using multilevel models, providing a quantitative measure of boundary inefficiency.

Version: 0.1.0
Depends: R (≥ 4.1.0)
Imports: dplyr, sf, spdep, igraph, rlang
Published: 2026-05-11
DOI: 10.32614/CRAN.package.spatialRegroup (may not be active yet)
Author: Nicolas Ausello ORCID iD [aut, cre]
Maintainer: Nicolas Ausello <nicolasausello at yahoo.fr>
License: GPL-3
NeedsCompilation: no
CRAN checks: spatialRegroup results

Documentation:

Reference manual: spatialRegroup.html , spatialRegroup.pdf

Downloads:

Package source: spatialRegroup_0.1.0.tar.gz
Windows binaries: r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries: r-release (arm64): spatialRegroup_0.1.0.tgz, r-oldrel (arm64): spatialRegroup_0.1.0.tgz, r-release (x86_64): spatialRegroup_0.1.0.tgz, r-oldrel (x86_64): not available

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