Package: adlaplaceGrf 0.5.2

adlaplaceGrf: FEM Matern Gaussian Random Fields for Adlaplace

Tensor-product B-spline finite-element ingredients for Matern Gaussian random fields (mass, stiffness, and higher-order Grams) for use with the adlaplace Laplace approximation framework. Provides design and Gram matrix construction on regular grids, with optional terra SpatRaster / SpatVector input, and AD tape builders for random_fem_ssq_* / random_fem_det_*.

Authors:Patrick Brown [aut, cre, cph]

adlaplaceGrf_0.5.2.tar.gz
adlaplaceGrf_0.5.2.zip(r-4.7)adlaplaceGrf_0.5.2.zip(r-4.6)adlaplaceGrf_0.5.2.zip(r-4.5)
adlaplaceGrf_0.5.2.tgz(r-4.6-x86_64)adlaplaceGrf_0.5.2.tgz(r-4.6-arm64)adlaplaceGrf_0.5.2.tgz(r-4.5-x86_64)adlaplaceGrf_0.5.2.tgz(r-4.5-arm64)
adlaplaceGrf_0.5.2.tar.gz(r-4.7-arm64)adlaplaceGrf_0.5.2.tar.gz(r-4.7-x86_64)adlaplaceGrf_0.5.2.tar.gz(r-4.6-arm64)adlaplaceGrf_0.5.2.tar.gz(r-4.6-x86_64)
adlaplaceGrf_0.5.2.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION
card.svg |card.png
adlaplaceGrf/json (API)

# Install 'adlaplaceGrf' in R:
install.packages('adlaplaceGrf', repos = c('https://eborgnine.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/eborgnine/adlaplace/issues

Uses libs:
  • c++– GNU Standard C++ Library v3

On CRAN:

Conda:

cpp

4.78 score 13 exports 8 dependencies

Last updated from:abf0625826 (on main). Checks:13 OK. Indexed: yes.
A new build is currently in progress.

TargetResultTimeFilesSyslog
linux-devel-arm64OK218
linux-devel-x86_64OK242
source / vignettesOK308
linux-release-arm64OK251
linux-release-x86_64OK222
macos-release-arm64OK180
macos-release-x86_64OK335
macos-oldrel-arm64OK154
macos-oldrel-x86_64OK431
windows-develOK210
windows-releaseOK205
windows-oldrelOK208
wasm-releaseOK124

Exports:beta_infodesignextra_ad_funfem_chol_patternfem_precisionfem_precision_payloadfem_Q_structuregrf_bsplinematernmatern_estprecisionrandom_infotheta_info

Dependencies:adlaplacedata.tablelatticeMatrixRcppRCppADRcppEigentrustOptim

Loaloa prevalence with FEM Matérn
Data | Knot lines | Fit | Summary | Estimated field
Rendered fromloaloa.Rmdusingknitr::rmarkdown

Last update: 2026-07-17
Started: 2026-07-17

FEM Matérn joint density with adlaplace
FEM ingredients | Hierarchical toy model | Joint density, gradient, and Hessian | Finite-difference checks
Rendered fromfem_joint_density.Rmdusingknitr::rmarkdown

Last update: 2026-07-17
Started: 2026-07-17

FEM Matérn methods: SPDE, B-splines, and covariance comparison
Continuous model: Matérn via Whittle SPDE | $$\operatorname{Cov}\bigl(u(\mathbf{s}),u(\mathbf{s}')\bigr) | Parameterization: range and sd | Finite-element weights and Grams | Tensor-product B-splines | Numerical comparison: Matérn vs FEM | References
Rendered fromfem_matern_methods.Rmdusingknitr::rmarkdown

Last update: 2026-07-17
Started: 2026-07-17

Readme and manuals

Help Manual

Help pageTopics
Symbolic LDL pattern for a sparse FEM precision structurefem_chol_pattern
Assemble FEM Matern precision Q2 or Q3 from Gramsfem_precision
Build random_fem_ssq_* / random_fem_det_* precision payload for adlaplacefem_precision_payload
Structural nonzero pattern for Q2 or Q3 from Gramsfem_Q_structure
Tensor-product B-spline FEM ingredients for a 2D Matern GRFgrf_bspline grf_bspline,data.frame-method grf_bspline,list-method
Posterior mean, SD, and simulations of a matern field on a rastermatern_est
Matern FEM spatial random field termbeta_info,matern-method design,matern-method extra_ad_fun,matern-method matern matern-class precision,matern-method random_info,matern-method theta_info,matern-method