libdeflate

1.25-0

DEFLATE Compression and Static Library

0packages depend

4.6Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Tyler Morgan-WallFirst published 2025-05-078 releasesCRAN page ↗GitHub ↗

Whole-buffer DEFLATE-based compression and decompression of raw vectors using the 'libdeflate' library (see https://github.com/ebiggers/libdeflate). Provides the user with additional control over the speed and the quality of DEFLATE compression compared to the fixed level of compression offered in R's 'memCompress()' function. Also provides the 'libdeflate' static library and 'C' headers along with a 'CMake' target and 'package‑config' file that ease linking of 'libdeflate' in packages that compile and statically link bundled libraries using 'CMake'.

Install

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

install.packages("libdeflate", 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("tylermorganwall/libdeflate")

Development version from tylermorganwall/libdeflate. 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-libdeflate

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-libdeflate

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

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

Health

CRAN checks

13OK

Slowest check: 1.5 min · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

None

Vignettes

Yes

README

Dependencies · direct

Check history

OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-03-20
11 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-03-10
10 OK · 3 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE

Downloads

4.6K

CRAN downloads in the past year

Rank #15,666 · ~13/day · ~383/mo

libdeflate Releases R versions

Daily download trend is not available in this view yet.

22530 days

71790 days

4.6K1 year

Compare downloads with other packages →

Also on475 r2u

Repository

GitHub ↗ tylermorganwall/libdeflate

1Stars

1Forks

1Open issues

0Open PRs

0Releases

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (0)

none

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Code Composition

C 19,051 (99%)Rd 104 (1%)R 87 (0%)

Code characteristics

Cyclomatic complexity: 1.0 median / 2 max
Documented parameters: 100%
System requirements: 2 external

Test coverage

Line coverage

–

Expression

–

Tests / Examples

–

Functions

335 4 exported

Complexity

1.3 avg / 2 max

Call network

335 nodes / 494 edges

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

Call graph

Open call graph →

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Lowest coverage

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

People & History

People (4)

Maintainer (1)

Tyler Morgan-Wall

Author, Maintainer

Authors (2)

Tyler Morgan-Wall

Author, Maintainer

Eric Biggers

Author, Copyright holder

Eric Biggers

Author, Copyright holder

Google LLC

Kevin Ushey

Release timeline

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

R
R 4.6.0 released · 2026-04-24
1.25-0Latest
2026-03-20 · current release · diff ↗
1.24-7
2025-07-21 · diff ↗
1.24-4
2025-06-29 · diff ↗
1.24-3
2025-06-27 · diff ↗
1.24-2
2025-06-24 · diff ↗
1.24-0
2025-05-27 · diff ↗
1.23.1
2025-05-11 · diff ↗
1.23.0
2025-05-07
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2025-05-07
Total releases: 8 / 1 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 3.5.0
Download size: 193 KB
Installed size: not tracked yet
With dependencies: not tracked yet