adjoin: Constructing Adjacency Matrices Based on Spatial and Feature Similarity

Constructs sparse adjacency matrices from spatial coordinates, feature measurements, class labels, and temporal indices. Supports nearest-neighbor graphs, heat-kernel weights, graph Laplacians, diffusion operators, and bilateral smoothers for graph-based data analysis, following spectral graph methods in von Luxburg (2007) <doi:10.1007/s11222-007-9033-z>, diffusion maps in Coifman and Lafon (2006) <doi:10.1016/j.acha.2006.04.006>, and bilateral filtering in Tomasi and Manduchi (1998) <doi:10.1109/ICCV.1998.710815>.

Version: 0.1.0
Depends: R (≥ 4.0.0)
Imports: Rcpp (≥ 0.11.3), Matrix, assertthat, Rnanoflann, chk, RSpectra, igraph, parallel, stats, methods, utils, mgcv, proxy, corpcor
LinkingTo: Rcpp, RcppArmadillo
Suggests: testthat (≥ 3.0.0), RcppHNSW (≥ 0.6.0), knitr, rmarkdown, furrr, crayon, ggplot2
Published: 2026-04-21
DOI: 10.32614/CRAN.package.adjoin (may not be active yet)
Author: Bradley R. Buchsbaum ORCID iD [aut, cre]
Maintainer: Bradley R. Buchsbaum <brad.buchsbaum at gmail.com>
BugReports: https://github.com/bbuchsbaum/adjoin/issues
License: MIT + file LICENSE
URL: https://github.com/bbuchsbaum/adjoin
NeedsCompilation: yes
Citation: adjoin citation info
Materials: README, NEWS
CRAN checks: adjoin results

Documentation:

Reference manual: adjoin.html , adjoin.pdf
Vignettes: Getting Started with adjoin (source, R code)
Spatial Neighbor Graphs (source, R code)

Downloads:

Package source: adjoin_0.1.0.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): not available, r-release (x86_64): not available, r-oldrel (x86_64): not available

Linking:

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