filearray

0.2.2

File-Backed Array for Out-of-Memory Computation

4packages depend

7.3Kdownloads / year

75.9%test coverage

13/13checks pass

Overview

About

Maintained by Zhengjia WangFirst published 2021-09-0813 releasesCRAN page ↗GitHub ↗

Stores large arrays in files to avoid occupying large memories. Implemented with super fast gigabyte-level multi-threaded reading/writing via 'OpenMP'. Supports multiple non-character data types (double, float, complex, integer, logical, and raw).

Install

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

install.packages("filearray", 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("dipterix/filearray")

Development version from dipterix/filearray. 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-filearray

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-filearray

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-filearray

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

Health

CRAN checks

13OK

Slowest check: 4.6 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.50

75.9%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-05-02
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-04-25
11 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-04-22
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Show 8 earlier snapshots

ERROR2026-04-18
13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-04-09
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-03-28
13 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-03-26
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-03-24
11 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
WARNING2026-03-21
9 OK · 4 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-03-16
13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 98%
Return-value docs: 100%
References docs: 0%

Downloads

7.3K

CRAN downloads in the past year

Rank #4,539 · ~20/day · ~612/mo

Releases R versions

Daily download trend is not available in this view yet.

45730 days

1.9K90 days

7.3K1 year

Compare downloads with other packages →

Also on541 r2u4K conda_forge43 c2d4u

Repository

GitHub ↗ dipterix/filearray

18Stars

2Forks

0Open issues

0Open PRs

7Releases

1Contributors

outofmemoryout-of-memoryarrayrmemory-mapbig-data

Last activity 2026-05-29

Repository practices

Upstream repositoryBeta

5 development-tooling and community-health practices detected across 3 families in the upstream repository

Checks run against github.com/dipterix/filearray on 2026-07-30.

Continuous integration (1)

GitHub Actions

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Lint, format, editor (2)

lintrRStudio project

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

Dependencies

Declared dependencies

10 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (5)

digest fastmapmethodsRcpp uuid

LinkingTo (2)

BH Rcpp

Suggests (4)

bit64 knitr rmarkdown testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

4direct

0indirect

ieegio ravecore ravetools ravepipeline

Code & Tests

People & History

People (1)

Maintainer (1)

Zhengjia Wang

Author, Maintainer, Copyright holder

Authors (1)

Zhengjia Wang

Author, Maintainer, Copyright holder

Zhengjia Wang

Author, Maintainer, Copyright holder

Package Timeline

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

0.2.2Latest
2026-05-23 · current release · diff ↗
R
R 4.6.0 released · 2026-04-24
0.2.1
2026-03-23 · diff ↗
R
R 4.5.0 released · 2025-04-11
0.2.0
2025-04-01 · diff ↗
0.1.9
2024-11-08 · diff ↗
0.1.8
2024-09-03 · diff ↗
0.1.7
2024-07-17 · diff ↗
R
R 4.4.0 released · 2024-04-24
0.1.6
2023-06-23 · diff ↗
R
R 4.3.0 released · 2023-04-21
0.1.5
2022-10-16 · diff ↗
0.1.4
2022-08-06 · diff ↗
R
R 4.2.0 released · 2022-04-22
0.1.3
2022-01-28 · diff ↗
0.1.2
2021-11-25 · diff ↗

Show 3 earlier events

0.1.1
2021-09-20 · diff ↗
0.1.0
2021-09-08
R
R 4.1.0 released · 2021-05-18

Package metadata

First published: 2021-09-08
Total releases: 13 / 5 yrs
License: LGPL-3 OSI
Download size: 120 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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