DAST: Spatio-Temporal Disaggregation for Maps with Changing Areal Boundaries

Tools for spatio-temporal disaggregation of areal data across multiple time points, including support for changing polygon boundaries. Implements methods for spatially aggregated log-Gaussian Cox process models with changing areal boundaries as described in Ripstein, Brown and Stafford (2026) "Spatio-Temporal Disaggregation with Changing Areal Boundaries" <doi:10.48550/arXiv.2606.25074>. Combines polygon-level observations, population rasters and optional covariate rasters to infer fine-scale spatial fields over time. Models can be efficiently fit using 'TMB' (Template Model Builder) and adaptive Gauss-Hermite quadrature for fast approximate inference or via 'tmbstan' for MCMC.

Version: 0.1.0
Imports: aghq, cowplot, disaggregation, fmesher, ggplot2, Matrix, numDeriv, rSPDE, sf, sparseMVN, terra, TMB
LinkingTo: TMB, RcppEigen
Suggests: knitr, rmarkdown, rstan, testthat (≥ 3.0.0), tmbstan
Published: 2026-06-30
DOI: 10.32614/CRAN.package.DAST (may not be active yet)
Author: Noah Ripstein [aut, cre]
Maintainer: Noah Ripstein <noah.ripstein at mail.utoronto.ca>
License: MIT + file LICENSE
URL: https://github.com/nripstein/DAST
NeedsCompilation: yes
Citation: DAST citation info
Materials: README, NEWS
CRAN checks: DAST results

Documentation:

Reference manual: DAST.html , DAST.pdf
Vignettes: Disaggregation With Multiple Maps (source, R code)

Downloads:

Package source: DAST_0.1.0.tar.gz
Windows binaries: r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries: r-release (arm64): DAST_0.1.0.tgz, r-oldrel (arm64): DAST_0.1.0.tgz, r-release (x86_64): not available, r-oldrel (x86_64): DAST_0.1.0.tgz

Linking:

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