Package: adlaplaceFem 0.5.3

adlaplaceFem: Finite Element Approximations for Adlaplace

Finite-element approximations for hierarchical models with the adlaplace Laplace approximation framework. Currently provides tensor-product B-spline FEM ingredients for Matern Gaussian random fields (mass, stiffness, and higher-order Grams), design and Gram matrix construction on regular grids, optional terra SpatRaster / SpatVector input, and AD tape builders for random_fem_ssq_* / random_fem_det_*.

Authors:Patrick Brown [aut, cre, cph]

adlaplaceFem_0.5.3.tar.gz
adlaplaceFem_0.5.3.zip(r-4.7)adlaplaceFem_0.5.3.zip(r-4.6)adlaplaceFem_0.5.3.zip(r-4.5)
adlaplaceFem_0.5.3.tgz(r-4.6-x86_64)adlaplaceFem_0.5.3.tgz(r-4.6-arm64)adlaplaceFem_0.5.3.tgz(r-4.5-x86_64)adlaplaceFem_0.5.3.tgz(r-4.5-arm64)
adlaplaceFem_0.5.3.tar.gz(r-4.7-arm64)adlaplaceFem_0.5.3.tar.gz(r-4.7-x86_64)adlaplaceFem_0.5.3.tar.gz(r-4.6-arm64)adlaplaceFem_0.5.3.tar.gz(r-4.6-x86_64)
adlaplaceFem_0.5.3.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION
card.svg |card.png
adlaplaceFem/json (API)

# Install 'adlaplaceFem' in R:
install.packages('adlaplaceFem', 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

4.79 score 1 stars 13 exports 8 dependencies

Last updated from:eaa0e49deb (on main). Checks:13 OK. Indexed: yes.

TargetResultTimeFilesSyslog
linux-devel-arm64OK233
linux-devel-x86_64OK231
source / vignettesOK340
linux-release-arm64OK214
linux-release-x86_64OK202
macos-release-arm64OK179
macos-release-x86_64OK267
macos-oldrel-arm64OK212
macos-oldrel-x86_64OK398
windows-develOK210
windows-releaseOK230
windows-oldrelOK214
wasm-releaseOK135

Exports:beta_infodesignextra_ad_funfem_bsplinefem_chol_patternfem_precisionfem_precision_payloadfem_Q_structurematernmatern_estprecisionrandom_infotheta_info

Dependencies:adlaplacedata.tablelatticeMatrixRcppRCppADRcppEigentrustOptim

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: 2026-07-18
Started: 2026-07-18

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: 2026-07-18
Started: 2026-07-18

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

Last update: 2026-07-18
Started: 2026-07-18

Readme and manuals

Help Manual

Help pageTopics
Tensor-product B-spline FEM ingredients for a 2D Matern GRFfem_bspline fem_bspline,data.frame-method fem_bspline,list-method
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
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