Package: DAST 0.1.0

Noah Ripstein

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.

Authors:Noah Ripstein [aut, cre]

DAST_0.1.0.tar.gz
DAST_0.1.0.tar.gz(r-4.7-arm64)DAST_0.1.0.tar.gz(r-4.7-x86_64)DAST_0.1.0.tar.gz(r-4.6-arm64)DAST_0.1.0.tar.gz(r-4.6-x86_64)
DAST_0.1.0.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
DAST/json (API)

# Install 'DAST' in R:

install.packages('DAST', repos = c('https://cran.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/nripstein/dast/issues

Uses libs:

c++– GNU Standard C++ Library v3

On CRAN:

cpp

2.70 score 4 scripts 10 exports 62 dependencies

Last updated from:c269373f30. Checks:6 OK. Indexed: yes.

Target	Result	Time
linux-devel-arm64	OK	316
linux-devel-x86_64	OK	351
source / vignettes	OK	430
linux-release-arm64	OK	323
linux-release-x86_64	OK	365
wasm-release	OK	266

Exports:disag_model_mmap disag_model_mmap_aghq disag_model_mmap_mcmc disag_model_mmap_tmb get_priors plot_aggregation_raster plot_covariate_raster plot_mesh plot_polygons prepare_data_mmap

Dependencies:aghq backports broom class classInt cli cowplot cpp11 data.table DBI disaggregation dplyr e1071 farver fmesher generics ggplot2 glue gtable isoband KernSmooth labeling lattice lifecycle magrittr MASS Matrix mvQuad numDeriv pillar pkgconfig polynom proxy purrr R6 RColorBrewer Rcpp RcppEigen rlang rSPDE s2 S7 scales sf sp sparseMVN splancs statmod stringi stringr terra tibble tidyr tidyselect tidyterra TMB units utf8 vctrs viridisLite withr wk

Disaggregation With Multiple Maps

Construct simulated maps | Simulate populations and counts | Prepare and fit the model | Predict on the fine grid

Rendered frommultiple-maps-schematic.Rmdusingknitr::rmarkdown

Last update: 2026-06-30
Started: 2026-06-30

Help page	Topics
Fit a multi-map disaggregation model (via AGHQ, TMB, or MCMC)	disag_model_mmap
Fit a multi-map disaggregation model via TMB + AGHQ	disag_model_mmap_aghq
Fit a multi-map disaggregation model via tmbstan MCMC	disag_model_mmap_mcmc
Fit a multi-map disaggregation model via TMB	disag_model_mmap_tmb
Get Default Prior Values for Disaggregation Model	get_priors
Build the TMB ADFun object for multi-map disaggregation	make_model_object_mmap
Plot the offset raster	plot_aggregation_raster
Plot a single covariate raster	plot_covariate_raster
Plot the SPDE mesh with custom outer/inner boundaries	plot_mesh
Plot polygon response data	plot_polygons
Visual summary plot of prepared data	plot.disag_data_mmap
Predict mean & credible intervals for AGHQ-fitted disaggregation model	predict.disag_model_mmap_aghq
Prediction guard for MCMC-fitted multi-map disaggregation models	predict.disag_model_mmap_mcmc
Predict for Multi-Map Disaggregation Model fit with TMB	predict.disag_model_mmap_tmb
Prepare multi-map disaggregation data	prepare_data_mmap
Print method for 'disag_data_mmap' objects	print.disag_data_mmap
Print method for 'disag_model_mmap_aghq' objects	print.disag_model_mmap_aghq
Print method for 'disag_model_mmap_mcmc' objects	print.disag_model_mmap_mcmc
Print method for 'summary.disag_model_mmap_aghq' objects (direct approach)	print.summary.disag_model_mmap_aghq
Print method for 'summary.disag_model_mmap_mcmc' objects	print.summary.disag_model_mmap_mcmc
Summary function for disag_data_mmap objects	summary.disag_data_mmap
Summary method for 'disag_model_mmap_aghq' objects (direct approach)	summary.disag_model_mmap_aghq
Summary method for 'disag_model_mmap_mcmc' objects	summary.disag_model_mmap_mcmc

Package: DAST 0.1.0

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

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Readme and manuals

Help Manual

Usage by other packages (reverse dependencies)