FRK

2.3.2

Fixed Rank Kriging

1packages depend

9.2Kdownloads / year

44.7%test coverage

11/13checks pass

Overview

About

Maintained by Andrew Zammit-MangionFirst published 2017-03-0730 releasesCRAN page ↗GitHub ↗

A tool for spatial/spatio-temporal modelling and prediction with large datasets. The approach models the field, and hence the covariance function, using a set of basis functions. This fixed-rank basis-function representation facilitates the modelling of big data, and the method naturally allows for non-stationary, anisotropic covariance functions. Discretisation of the spatial domain into so-called basic areal units (BAUs) facilitates the use of observations with varying support (i.e., both point-referenced and areal supports, potentially simultaneously), and prediction over arbitrary user-specified regions. `FRK` also supports inference over various manifolds, including the 2D plane and 3D sphere, and it provides helper functions to model, fit, predict, and plot with relative ease. Version 2.0.0 and above also supports the modelling of non-Gaussian data (e.g., Poisson, binomial, negative-binomial, gamma, and inverse-Gaussian) by employing a generalised linear mixed model (GLMM) framework. Zammit-Mangion and Cressie doi:10.18637/jss.v098.i04 describe `FRK` in a Gaussian setting, and detail its use of basis functions and BAUs, while Sainsbury-Dale, Zammit-Mangion, and Cressie doi:10.18637/jss.v108.i10 describe `FRK` in a non-Gaussian setting; two vignettes are available that summarise these papers and provide additional examples.

Install

R (CRAN)pak (dev)Ubuntu (r2u)openSUSE (OBS)

install.packages("FRK", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("andrewzm/FRK")

Development version from andrewzm/FRK. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-frk

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-FRK

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

2ERROR11OK

Failing flavors

ERROR r-devel-linux-x86_64-fedora-clang
ERROR r-devel-linux-x86_64-fedora-gcc

Slowest check: 189.3 min · r-devel-linux-x86_64-fedora-gcc

Code health

Yes

Tests · ratio 0.10

44.7%

Coverage · measured lines

85%

Documentation · exports

Dependencies · direct

Check history

ERROR2026-03-10
9 OK · 3 NOTE · 0 WARNING · 2 ERROR · 0 FAILURE

Documentation

READMENoVignettesYes · dynamicpkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 91%
Documented parameters: 94%
Return-value docs: 11%
References docs: 17%

Downloads

9.2K

CRAN downloads in the past year

Rank #5,806 · ~25/day · ~770/mo

Releases R versions

Daily download trend is not available in this view yet.

40730 days

1.6K90 days

9.2K1 year

Compare downloads with other packages →

Also on704 r2u15 autocran93 c2d4u

Repository

GitHub ↗ andrewzm/frk

75Stars

19Forks

4Open issues

0Open PRs

11Releases

832Commits

5Contributors

832 commits · Last activity 2026-01-15 · 0% stars, 30d

Stars over time

2025-05-19 · 722026-07-07 · 75

Repository practices

Upstream repositoryBeta

3 development-tooling and community-health practices detected across 2 families in the upstream repository

Checks run against github.com/andrewzm/frk on 2026-07-19.

Continuous integration (2)

GitHub ActionsTravis CI

CRAN release process (1)

cran-comments.md

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

30 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (20)

digest dplyr fmesher ggplot2grDevicesHmiscMatrixmethodsplyr Rcpp sp spacetime sparseinv statmodstatsTMButilsggpubr reshape2 scales

LinkingTo (3)

Rcpp TMB RcppEigen

Suggests (13)

covr dggrids gridExtra gstat knitr lme4 mapprojparallelsf spdep splancs testthat verification

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

IDE

Code & Tests

Datasets

People & History

People (2)

Maintainer (1)

Andrew Zammit-Mangion

Author, Maintainer

Authors (2)

Andrew Zammit-Mangion

Author, Maintainer

Matthew Sainsbury-Dale

Author · added in 2.0.0

Listed in earlier versions (4)

Patrick Amestoy

no longer listed · 0.1.2 to 0.1.8

Timothy Davis

no longer listed · 0.1.2 to 0.1.8

Iain Duff

no longer listed · 0.1.2 to 0.1.8

John K. Reid

no longer listed · 0.1.2 to 0.1.8

Package Timeline

30 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
2.3.2Latest
2026-01-16 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
2.3.1
2024-07-16 · diff ↗
2.3.0
2024-06-17 · diff ↗
R
R 4.4.0 released · 2024-04-24
2.2.3
2024-04-03 · diff ↗
2.2.2
2024-02-26 · diff ↗
2.2.1
2024-01-09 · diff ↗
2.2.0
2023-10-18 · diff ↗
R
R 4.3.0 released · 2023-04-21
2.1.5
2023-02-01 · diff ↗
2.1.3
2022-12-20 · diff ↗
2.1.2
2022-12-16 · diff ↗
2.1.0
2022-09-15 · diff ↗
2.0.6
2022-09-01 · diff ↗

Show 26 earlier events

R
R 4.2.0 released · 2022-04-22
2.0.5
2022-03-25 · diff ↗
2.0.4
2022-02-18 · diff ↗
2.0.3
2022-01-10 · diff ↗
2.0.2
2021-11-16 · diff ↗
2.0.1
2021-10-11 · diff ↗
2.0.0
2021-05-28 · diff ↗
R
R 4.1.0 released · 2021-05-18
1.0.0
2021-02-22 · diff ↗
R
R 4.0.0 released · 2020-04-24
0.2.2.1
2020-04-01 · diff ↗
R
R 3.6.0 released · 2019-04-26
0.2.2
2018-07-13 · diff ↗
R
R 3.5.0 released · 2018-04-23
0.2.1
2018-04-13 · diff ↗
0.1.8
2018-01-13 · diff ↗
0.1.7
2018-01-07 · diff ↗
0.1.6
2017-10-13 · diff ↗
0.1.5
2017-08-08 · diff ↗
0.1.4
2017-06-14 · diff ↗
0.1.3
2017-05-05 · diff ↗
0.1.2
2017-04-21 · diff ↗
R
R 3.4.0 released · 2017-04-21
0.1.1
2017-03-07
removedRemoved from CRAN
2017-02-05
correct copyright information was missing. Re-added 2017-03-07
R
R 3.3.0 released · 2016-05-03

Package metadata

First published: 2017-03-07
Total releases: 30 / 9 yrs
License: GPL (>= 2) OSI
Additional repositories: andrewzm.github.io
Minimum R: ≥ 3.5.0
Bundled data: 2.5 MB / 6 files
Download size: 4.4 MB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Analysis of Spatial Data

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