CFtime

1.7.3

Using CF-Compliant Calendars with Climate Projection Data

7packages depend

81.4Kdownloads / year

94.5%test coverage

13/13checks pass

Overview

About

Maintained by Patrick Van LaakeFirst published 2023-08-1115 releasesCRAN page ↗GitHub ↗

Support for all calendars as specified in the Climate and Forecast (CF) Metadata Conventions for climate and forecasting data. The CF Metadata Conventions is widely used for distributing files with climate observations or projections, including the Coupled Model Intercomparison Project (CMIP) data used by climate change scientists and the Intergovernmental Panel on Climate Change (IPCC). This package specifically allows the user to work with any of the CF-compliant calendars (many of which are not compliant with POSIXt). The CF time coordinate is formally defined in the CF Metadata Conventions document available at https://cf-convention.github.io/Data/cf-conventions/cf-conventions-1.13/cf-conventions.html#time-coordinate.

Install

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

install.packages("CFtime", 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("R-CF/CFtime")

Development version from R-CF/CFtime. 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-cftime

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

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-CFtime

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# 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-CFtime

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

Health

CRAN checks

13OK

Slowest check: 1.8 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.19

94.5%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-04-09
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-08
12 OK · 0 NOTE · 0 WARNING · 2 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 859 wordsVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 98%
Return-value docs: 86%
References docs: 12%

Downloads

81.4K

CRAN downloads in the past year

Rank #1,557 · ~223/day · ~6.8K/mo

Releases R versions

Daily download trend is not available in this view yet.

4.1K30 days

18.7K90 days

81.4K1 year

Compare downloads with other packages →

Also on2.2K r2u39 autocran2.9K conda_forge13 c2d4u

Repository

GitHub ↗ r-cf/cftime

9Stars

1Forks

0Open issues

0Open PRs

14Releases

150Commits

2Contributors

cftimer

150 commits · Last activity 2026-04-02

Repository practices

Upstream repositoryBeta

4 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/r-cf/cftime on 2026-07-19.

Continuous integration (1)

GitHub Actions

CRAN release process (1)

cran-comments.md

Docs source (1)

README.Rmd

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (1)

LinkingTo (0)

none

Suggests (3)

rmarkdown testthat stringr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

7direct

8indirect

dacc ncdfCF ncmeta tidync CopernicusMarine metR stars

Code & Tests

Code Composition

R 4,737 (54%)Rd 4,108 (46%)

Code characteristics

Object systems

S39R612

Cyclomatic complexity: 1.0 median / 14 max
Test cases: 18 / 0.19 per code line

Test coverage

Line coverage

94%

Expression

93.7%

Tests / Examples

94.5% / 57% ex

Functions

40 19 exported

Complexity

2.4 avg / 14 max

Call network

40 nodes / 4 edges

Call graph

Open call graph →

Loading call graph…

Lowest coverage

40 functions

Function	Cyclo	Coverage
+.CFClimatology	4	0%
[.CFTime	1	0%
format.CFTime	1	0%
str.CFTime	1	0%
CFtime exp	14	15%
+.CFTime	10	86%

People & History

People (1)

Maintainer (1)

Patrick Van Laake

Author, Maintainer, Copyright holder

Authors (1)

Patrick Van Laake

Author, Maintainer, Copyright holder

Patrick Van Laake

Author, Maintainer, Copyright holder

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
1.7.3Latest
2026-04-02 · current release · diff ↗
1.7.2
2025-11-12 · diff ↗
1.7.1
2025-10-01 · diff ↗
1.7.0
2025-08-23 · diff ↗
1.6.2
2025-05-18 · diff ↗
1.6.1
2025-04-12 · diff ↗
R
R 4.5.0 released · 2025-04-11
1.6.0
2025-03-28 · diff ↗
1.5.1
2025-03-03 · diff ↗
1.5.0
2025-01-15 · diff ↗
1.4.1
2024-09-15 · diff ↗
1.4.0
2024-06-05 · diff ↗
R
R 4.4.0 released · 2024-04-24
1.3.0
2024-02-28 · diff ↗
1.2.0
2023-11-02 · diff ↗

Show 3 earlier events

1.1.0
2023-10-09 · diff ↗
1.0.0
2023-08-11
R
R 4.3.0 released · 2023-04-21

Package metadata

First published: 2023-08-11
Total releases: 15 / 3 yrs
License: MIT + file LICENSE OSI
Download size: 396 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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