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GeneralizedWendland

Fully Parameterized Generalized Wendland Covariance Function

v0.6.1 · Oct 15, 2025 · GPL (>= 2)

Description

A fully parameterized Generalized Wendland covariance function for use in Gaussian process models, as well as multiple methods for approximating it via covariance interpolation. The available methods are linear interpolation, polynomial interpolation, and cubic spline interpolation. Moreno Bevilacqua and Reinhard Furrer and Tarik Faouzi and Emilio Porcu (2019) <url:<https://projecteuclid.org/journalArticle/Download?urlId=10.1214%2F17-AOS1652 >>. Moreno Bevilacqua and Christian CaamaƱo-Carrillo and Emilio Porcu (2022) <doi:10.48550/arXiv.2008.02904>. Reinhard Furrer and Roman Flury and Florian Gerber (2022) <url:<https://CRAN.R-project.org/package=spam >>.

Downloads

CRAN

725

Last 30 days

4550th

2.2K

Last 90 days

8.8K

Last year

Trend: +4.6% (30d vs prior 30d)

r2u CRAN

24

Last 30 days

114

Last 90 days

473

Last year

Trend: -41.5% (30d vs prior 30d)

CRAN Check Status

13 OK
Show all 13 flavors
Flavor Status
r-devel-linux-x86_64-debian-clang OK
r-devel-linux-x86_64-debian-gcc OK
r-devel-linux-x86_64-fedora-clang OK
r-devel-linux-x86_64-fedora-gcc OK
r-devel-windows-x86_64 OK
r-oldrel-macos-arm64 OK
r-oldrel-macos-x86_64 OK
r-oldrel-windows-x86_64 OK
r-patched-linux-x86_64 OK
r-release-linux-x86_64 OK
r-release-macos-arm64 OK
r-release-macos-x86_64 OK
r-release-windows-x86_64 OK

Check History

OK 12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Apr 25, 2026
NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Apr 22, 2026
NOTE r-oldrel-macos-arm64

installed package size

installed size is  5.1Mb
  sub-directories of 1Mb or more:
    doc    1.4Mb
    libs   3.6Mb
NOTE r-oldrel-macos-x86_64

installed package size

installed size is  5.1Mb
  sub-directories of 1Mb or more:
    doc    1.4Mb
    libs   3.6Mb
ERROR 11 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Apr 18, 2026
ERROR r-devel-windows-x86_64

whether package can be installed

Installation failed.
See 'd:/Rcompile/CRANpkg/local/4.6/GeneralizedWendland.Rcheck/00install.out' for details.
NOTE r-oldrel-macos-arm64

installed package size

installed size is  5.1Mb
  sub-directories of 1Mb or more:
    doc    1.4Mb
    libs   3.6Mb
NOTE r-oldrel-macos-x86_64

installed package size

installed size is  5.1Mb
  sub-directories of 1Mb or more:
    doc    1.4Mb
    libs   3.6Mb
NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
NOTE r-oldrel-macos-arm64

installed package size

installed size is  5.1Mb
  sub-directories of 1Mb or more:
    doc    1.4Mb
    libs   3.6Mb
NOTE r-oldrel-macos-x86_64

installed package size

installed size is  5.1Mb
  sub-directories of 1Mb or more:
    doc    1.4Mb
    libs   3.6Mb

Line coverage

Expression

Tests / Examples

Functions

43 12 exported

Complexity

3.9 avg / 10 max

Call network

43 nodes / 22 edges

Test coverage has not been measured for this package yet; nodes fall back to a neutral fill.

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Lowest coverage

Per-function coverage is not measured for this package yet.

Code

Structure

Lines of code

2,430

Files

47

Compiled share

21.4%

Has compiled src

Yes

Language breakdown

R 705 (29%)C/C++/src 521 (21.4%)Tests 146 (6%)Docs 1,056 (43.5%)Vignettes 2 (0.1%)

API

Exported functions

12

Internal functions

3

Recent export changes

v0.5-2+12 covarianceFactory, choleskyFactory, neg2loglikFactory +9 more

Testing & CI

Has tests

Yes

Test-to-code ratio

0.21

testthat edition

3

CI present

No

CI type

[]

PR gated

No

Docs

Return-value doc rate

100%

\dontrun example ratio

0%

Roxygen coverage

100%

Has pkgdown

No

NEWS present

Yes

Health & Security signals

Informational signals; not verdicts.

on.exit coverage

Unsafe pattern score

0

Dep constraint coverage

0%

Secret pattern count

0

Bundled 3rd-party code

2 items

Portability & License

Min R version

3.1

System requirements

1

C++ standard

License

GPL (>= 2)

License flags

SPDX valid, OSI approved

History

Versions

3

First release

2022-06-22

Latest release

2025-10-15

Avg cadence

606 days

Cold removal rate

Dep drift

0

LOC over versions

v0.5-2: 2,350 LOCv0.6.0: 2,357 LOCv0.6.1: 2,430 LOC

Per-file churn detail lives in the source pipeline: https://github.com/r-observatory/cran-code-metrics.

Dependency Network

Dependencies Reverse dependencies Matrix Rcpp spam spam64 optimParallel fields GeneralizedWendland

Version History

4 tracked
new 0.6.1 Mar 10, 2026
updated 0.6.1 ← 0.6.0 diff Oct 14, 2025
updated 0.6.0 ← 0.5-2 diff Feb 17, 2024
new 0.5-2 Jun 21, 2022