SpatMix: Spatial Mixture Models for Clustering

Fits spatial mixture models, including spatial Gaussian mixtures and mixtures of spatial factor analyzers, to complete or incomplete data. Spatial decay can be represented by monotone I-splines or a normalized sigmoid. Missing entries are handled using a built-in partial expectation-maximization procedure for matrix-variate data. The spatial covariance and spatial factor analyzer models are described in Lu and colleagues (2026a) "Spatial Covariance Constraints for Gaussian Mixture Models" <doi:10.48550/arXiv.2601.07979> and Lu and colleagues (2026b) "Mixtures of spatial factor analyzers for tensor-variate data" <doi:10.48550/arXiv.2607.07887>.

Version:	0.1.0
Depends:	R (≥ 4.1.0)
Imports:	MASS, matrixStats, Rcpp, splines2, stats, withr
LinkingTo:	Rcpp, RcppArmadillo
Suggests:	testthat (≥ 3.0.0)
Published:	2026-09-09
DOI:	10.32614/CRAN.package.SpatMix
Author:	Hanzhang Lu [aut, cre], Jeffrey L. Andrews [aut, ths]
Maintainer:	Hanzhang Lu <hanzhang.lu at ubc.ca>
BugReports:	https://github.com/LHZMix/SpatMix/issues
License:	MIT + file LICENSE
URL:	https://github.com/LHZMix/SpatMix
NeedsCompilation:	yes
Citation:	SpatMix citation info
Materials:	README
CRAN checks:	SpatMix results

Documentation:

Reference manual:

SpatMix.html , SpatMix.pdf

Downloads:

Package source:	SpatMix_0.1.0.tar.gz
Windows binaries:	r-devel: SpatMix_0.1.0.zip, r-release: not available, r-oldrel: SpatMix_0.1.0.zip
macOS binaries:	r-release (arm64): not available, r-oldrel (arm64): SpatMix_0.1.0.tgz, r-release (x86_64): SpatMix_0.1.0.tgz, r-oldrel (x86_64): SpatMix_0.1.0.tgz

Linking:

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