R Observatory: Metrics for mmap version 0.6-26

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

mmap

0.6-26Package record

Map Pages of Memory

3packages dependsuggested by 1

16.9Kdownloads / year

16.5%test coverage

8/13flavors OK

Overview

About

Maintained by Jeffrey A. RyanCRAN page ↗GitHub ↗Issues ↗

R interface to POSIX mmap and Window's MapViewOfFile.

Install

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

install.packages("mmap", 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("jaryan/mmap")

Development version from jaryan/mmap. 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-mmap

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

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-mmap

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-mmap

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

5NOTE8OK

Check messages

NOTER code for possible problemsr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc, r-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc, r-devel-windows-x86_64

Found calls to structure() using deprecated special names:
  mmap/R/mmap.R (.Names: 1)
'.Names' should be changed to 'names'.

Additional issues

CRAN check page ↗

Slowest check: 2.3 min · r-devel-windows-x86_64

Status changes

NOTE8 OK, 5 NOTENow
NOTE12 OK, 1 NOTE2026-07-16
OK14 OK2026-04-16
WARNING9 OK, 4 NOTE, 1 WARNING2026-03-21
NOTE13 OK, 1 NOTE2026-03-17
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.6-26

READMEYes · 12 wordsVignettesYes · 1 · dynamicNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 9
Examples that run: 100%7 run in a plain check
Exported functions with examples: 78%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 44%

Vignettes (1)

mmap: Memory Mapped Files in R PDF

How these are measured

Downloads

16.9K

CRAN downloads in the past year

Rank #3,146 · ~46/day · ~1.4K/mo

Releases R versions

Daily download trend is not available in this view yet.

1.4K30 days

4K90 days

16.9K1 year

Compare downloads with other packages →

Also on462 r2u8 autocran146 c2d4u

How downloads are counted

Repository

jaryan/mmap ↗Account: jaryan

17Stars

2Forks

5Open issues

0Open PRs

0Releases

138Commits

5Commit identities

License file reads as GPL-3.0 · 138 commits · Last activity 2026-04-09 · 0% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 67%
Median days to close, 50 most recently updated closed issues: 628
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2025-06-21 · 162026-07-07 · 17

How these are measured

PracticesBeta

1 development-tooling and community-health practice detected across 1 family in the upstream repository

Checks run against github.com/jaryan/mmap on 2026-10-21.

Continuous integration (1)

GitHub Actions

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

Installing mmap adds no packages beyond those that come with R.

Depends (1)

R >= 4.1.0

Imports (0)

none

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

3direct

1indirect

Depends 1 · Imports 2

Suggested by 1

Depends, Imports or LinkingTo, most downloaded first

Eagle neuroim2 GENEAread

Suggests, most downloaded first

delarr

How these are counted

Code & Tests

People & History

People (1)

Jeffrey A. Ryan

Author, Maintainer since 0.5-5 (2010)

Listed in earlier versions (1)

Ryan

no longer listed · 0.6-23 to 0.6-26

Releases (15)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
0.6-26Latest
record
2026-04-09 · current release · diff ↗
0.6-24
record
2026-01-31 · diff ↗
0.6-23
record
2025-12-09 · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
0.6-22
record
2023-12-08 · diff ↗
R
R 4.3.0 released · 2023-04-21
0.6-21
record
2023-01-29 · diff ↗ ·
added 6 exports
cstring, as.cstring, is.na.mmap, sizeofCtypes, cstring.MaxWidth, is.cstring
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
0.6-19
record
2020-01-14 · diff ↗
R
R 3.6.0 released · 2019-04-26
0.6-17
record
2018-06-27 · diff ↗
R
R 3.5.0 released · 2018-04-23

Show 18 earlier eventsHide 18 earlier events

0.6-15
record
2017-09-02 · diff ↗
0.6-14
record
2017-08-29 · diff ↗
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
R
R 3.2.0 released · 2015-04-16
R
R 3.1.0 released · 2014-04-10
0.6-12
record
2013-08-28 · diff ↗
R
R 3.0.0 released · 2013-04-03
R
R 2.15.0 released · 2012-03-30
R
R 2.14.0 released · 2011-10-31
0.6-7
record
2011-08-09 · diff ↗ ·
added 13 exports
bits, logi8, logi32, int64, pad, is.Ctype, dim<-.mmap, dimnames.mmap, dimnames<-.mmap, is.array.mmap, sizeof, make.fixedwidth, mmap.csv
R
R 2.13.0 released · 2011-04-13
0.6-1
record
2011-02-04 · diff ↗ ·
added 1 export
dim.mmap
0.5-8
record
2010-12-04 · diff ↗
0.5-6
record
2010-10-27 · diff ↗
R
R 2.12.0 released · 2010-10-15
0.5-5
record
2010-05-22
R
R 2.11.0 released · 2010-04-22

Package metadata

First published: 2010-05-22
Total releases: 15 / 16 yrs
License: GPL-3 OSI
Minimum R: ≥ 4.1.0
Download size: 392 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("mmap")

Format

Ryan, J. A. (2026). mmap: Map Pages of Memory (Version 0.6-26) [Computer software]. https://doi.org/10.32614/CRAN.package.mmap

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for mmap version 0.6-26 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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