R Observatory: Metrics for akima version 0.6-3.6

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

akima

0.6-3.6

Interpolation of Irregularly and Regularly Spaced Data

7packages depend

121.7Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Albrecht GebhardtFirst published 1998-08-2028 releasesCRAN page ↗

Several cubic spline interpolation methods of H. Akima for irregular and regular gridded data are available through this package, both for the bivariate case (irregular data: ACM 761, regular data: ACM 760) and univariate case (ACM 433 and ACM 697). Linear interpolation of irregular gridded data is also covered by reusing D. J. Renkas triangulation code which is part of Akimas Fortran code. A bilinear interpolator for regular grids was also added for comparison with the bicubic interpolator on regular grids. Please note that most of the functions are now also covered in package interp, which is a re-implementation from scratch under a free license.

Install

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

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

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

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-akima

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-akima

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

Health

CRAN checks

13OK

Slowest check: 2.4 min · r-devel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

1

Dependencies · direct

Check history

OK2026-08-05
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 82%
Documented parameters: 87%
Return-value docs: 100%
References docs: 92%

Downloads

121.7K

CRAN downloads in the past year

Rank #1,367 · ~333/day · ~10.1K/mo

Releases R versions

Daily download trend is not available in this view yet.

7K30 days

21.6K90 days

121.7K1 year

Compare downloads with other packages →

Also on762 r2u72 autocran18.6K conda_forge68 c2d4u

Dependencies

Declared dependencies

1 external dependency (excludes base and recommended)

Depends (1)

R >= 2.0.0

Imports (1)

sp

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

7direct

0indirect

ONAM ParamHelpers fastlpr fitlandr mlrMBO prinsurf puff

Code & Tests

Datasets

People & History

People (5)

Maintainer (1)

Albrecht Gebhardt

Author, Maintainer, Copyright holder · added in 0.5-12

Authors (2)

Albrecht Gebhardt

Author, Maintainer, Copyright holder · added in 0.5-12

Hiroshi Akima

Author, Copyright holder · added in 0.5-12

Contributors (2)

Martin Maechler

Contributor, Copyright holder · added in 0.5-12

Thomas Petzold

Contributor, Copyright holder · added in 0.5-12

Copyright holders (5)

Albrecht Gebhardt

Author, Maintainer, Copyright holder · added in 0.5-12

Hiroshi Akima

Author, Copyright holder · added in 0.5-12

Martin Maechler

Contributor, Copyright holder · added in 0.5-12

Thomas Petzold

Contributor, Copyright holder · added in 0.5-12

YYYY Association for Computing Machinery, Inc.

Copyright holder · added in 0.5-12

Listed in earlier versions (8)

Fortran code by H. Akima R port by Albrecht Gebhardt

no longer listed · 0.3-2 to 0.3-4

Fortran code by H. Akima. R port by Albrecht Gebhardt.

no longer listed · 0.2-3 to 0.3-1

Fortran code by H. Akima R port by Albrecht Gebhardt aspline function by Thomas Petzoldt <petzoldt@rcs.urz.tu-dresden.de>

no longer listed · 0.4-3 to 0.4-4

corrections by Martin Maechler

no longer listed · 0.4-5 to 0.5-11

Fortran code by H. Akima R port by Albrecht Gebhardt aspline function by Thomas Petzoldt <petzoldt@rcs.urz.tu-dresden.de> enhancements

no longer listed · 0.4-5 to 0.5-4

Fortran code by H. Akima R port by Albrecht Gebhardt aspline function by Thomas Petzoldt <thomas.petzoldt@tu-dresden.de> enhancements

no longer listed · 0.5-7 to 0.5-8

enhancements

no longer listed · 0.5-9 to 0.5-11

Fortran code by H. Akima R port by Albrecht Gebhardt aspline function by Thomas Petzoldt <thomas.petzoldt@tu-dresden.de> interp2xyz

no longer listed · 0.5-9 to 0.5-11

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
0.6-3.6Latest
2025-06-02 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
0.6-3.4
2022-04-27 · diff ↗
R
R 4.2.0 released · 2022-04-22
0.6-3.3
2022-04-19 · diff ↗
0.6-2.3
2021-11-02 · diff ↗
0.6-2.2
2021-08-17 · diff ↗
R
R 4.1.0 released · 2021-05-18
0.6-2.1
2020-05-30 · diff ↗
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21

Show 47 earlier events

0.6-2
2016-12-20 · diff ↗
0.6-1
2016-12-16 · diff ↗
R
R 3.3.0 released · 2016-05-03
0.5-12
2015-09-15 · diff ↗
R
R 3.2.0 released · 2015-04-16
R
R 3.1.0 released · 2014-04-10
0.5-11
2013-09-16 · diff ↗
R
R 3.0.0 released · 2013-04-03
0.5-10
2013-03-01 · diff ↗
0.5-9
2013-01-20 · diff ↗
0.5-8
2012-12-05 · diff ↗
R
R 2.15.0 released · 2012-03-30
0.5-7
2012-01-08 · diff ↗
R
R 2.14.0 released · 2011-10-31
R
R 2.13.0 released · 2011-04-13
R
R 2.12.0 released · 2010-10-15
R
R 2.11.0 released · 2010-04-22
0.5-4
2009-11-04 · diff ↗
R
R 2.10.0 released · 2009-10-26
0.5-3
2009-09-21 · diff ↗
0.5-2
2009-06-14 · diff ↗
R
R 2.9.0 released · 2009-04-17
R
R 2.8.0 released · 2008-10-20
R
R 2.7.0 released · 2008-04-22
R
R 2.6.0 released · 2007-10-03
R
R 2.5.0 released · 2007-04-24
R
R 2.4.0 released · 2006-10-03
R
R 2.3.0 released · 2006-04-24
0.5-1
2006-02-03 · diff ↗
R
R 2.2.0 released · 2005-10-06
0.4-5
2005-07-21 · diff ↗
R
R 2.1.0 released · 2005-04-18
0.4-4
2005-04-01 · diff ↗
0.4-3
2005-01-09 · diff ↗
R
R 2.0.0 released · 2004-10-04
R
R 1.9.0 released · 2004-04-12
R
R 1.8.0 released · 2003-10-08
R
R 1.7.0 released · 2003-04-16
R
R 1.6.0 released · 2002-10-01
0.3-4
2002-05-07 · diff ↗
R
R 1.5.0 released · 2002-04-29
0.3-3
2002-01-01 · diff ↗
0.3-2
2001-06-18 · diff ↗
0.3-1
2001-01-10 · diff ↗
0.2-5
2000-06-04 · diff ↗
0.2-4
1999-08-19 · diff ↗
0.2-3
1998-08-20

Package metadata

First published: 1998-08-20
Total releases: 28 / 28 yrs
License: file LICENSE
Minimum R: ≥ 2.0.0
Bundled data: 2.9 KB / 3 files
Download size: 133 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Numerical Mathematics

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("akima")

Format

Gebhardt, A., YYYY Association for Computing Machinery, Inc., Akima, H., Maechler, M., & Petzold, T. (2025). akima: Interpolation of Irregularly and Regularly Spaced Data (Version 0.6-3.6) [Computer software]. https://doi.org/10.32614/CRAN.package.akima

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

Cite the R Observatory

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Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for akima version 0.6-3.6 [Data set]. HJJB, LLC. Data release v2026-08-23. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-23, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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