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anndata

0.8.0Package record

'anndata' for R

0packages dependsuggested by 1
37.3Kdownloads / year
54.9%test coverage
13/13flavors OK

Overview

About

A 'reticulate' wrapper for the Python package 'anndata'. Provides a scalable way of keeping track of data and learned annotations. Used to read from and write to the h5ad file format.

Changes in 0.8.0
  • FUNCTIONALITY: Added support for read_zarr() and write_zarr() (PR #33).
  • BUG FIX: Use the right interface for the all.equal() function (PR #32).
  • BUG FIX: Add py_to_r converter for anndata.abc._AbstractCSDataset (PR #34).
  • MINOR CHANGES: Ignore python warnings when running tests (PR #34).
  • MAJOR CHANGES: Update reticulate package dependency management (PR #36).
  • MINOR CHANGES: Clean up roxygen code (PR #36).
  • MINOR CHANGES: Use cli for generating errors (PR #36).

From NEWS.md in the release

Install

Health

CRAN checks
13OK
Slowest check: 2.9 min · r-oldrel-windows-x86_64
Status changes
  • OK13 OK2026-09-08
  • ERROR12 OK, 1 ERROR2026-09-07
  • OK13 OK2026-08-05
  • NOTE12 OK, 1 NOTE2026-08-01
  • OK14 OK2026-03-10
Advisories

none known

Documentation

In release 0.8.0
READMEYes · 446 wordsVignettesYes · 2 · staticNEWSYes · 100% structured · mentions 0.8.0Citation fileNoWebsiteYes · pkgdown
Help pages
24includes a package overview page
Examples that run
0%22 never run
Exported functions with examples
100%
Documented parameters
100%
Return-value docs
0%
Help pages citing references
0%

Downloads

37.3K
CRAN downloads in the past year
Rank #2,476 · ~102/day · ~3.1K/mo
Daily download trend is not available in this view yet.
1.8K30 days
6.6K90 days
37.3K1 year
Compare downloads with other packages →
Also on5.1K r2u24 autocran6.1K bioconda

Repository

54Stars
4Forks
2Open issues
0Open PRs
5Releases
155Commits
2Commit identities
155 commits · Last activity 2026-04-01 · +1.9% stars, 30d · Default branch at 0.9.0, ahead of CRAN 0.8.0 (checked 2026-10-21)
Responsiveness
How these are sampled
PRs merged (all time)
100%
Median days to close, 50 most recently updated closed issues
215
Median days to close, 50 most recently updated closed PRs
8

Stars over time

2025-07-28 · 502026-10-09 · 54
PracticesBeta

13 development-tooling and community-health practices detected across 6 families in the upstream repository

Checks run against github.com/dynverse/anndata on 2026-10-21.

Continuous integration (2)
GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Governance and community (3)
Code of conductContributing guideFunding

Funding links: data-intuitive.com

Docs source (4)
README.Rmdpkgdown

GitHub Pages site last deployed 2026-04-01 · The repository has a site deploy workflow

pkgdown site last built 2026-04-01

Coverage (1)
Coverage reporting (Codecov)
Show all practicesHide 2 practices
CRAN release process (2)
cran-comments.mdrevdep/
Lint, format, editor (1)
RStudio project
How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies
8 external dependencies (excludes base and recommended)

Installing anndata adds 14 packages (8 with compiled code, 6.3 MB of source tarballs). Heaviest: Rcpp 1.8 MB, reticulate 1.6 MB, jsonlite 1.0 MB.

Depends (1)
R >= 3.5.0
Imports (7)
LinkingTo (0)
none
Suggests (4)
Enhances (0)
none
Reverse dependencies
0direct
0indirect
Suggested by 1
Suggests, most downloaded first

People & History

People (5)
Author, Maintainer since 0.7.4 (2020), Copyright holder
Releases (9)

Pick two releases to compare their code metrics.

  • R
    R 4.6.0 released · 2026-04-24
  • 0.8.0Latest
    record
    2025-05-27 · current release · diff ↗ ·
    added 2 exports
    read_zarr, write_zarr
  • 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
  • 0.7.5.6
    record
    2023-03-17 · diff ↗
  • 0.7.5.5
    record
    2022-09-23 · diff ↗
  • 0.7.5.4
    record
    2022-08-23 · diff ↗
  • R
    R 4.2.0 released · 2022-04-22
  • 0.7.5.3
    record
    2021-09-10 · diff ↗
  • R
    R 4.1.0 released · 2021-05-18
  • 0.7.5.2
    record
    2021-03-28 · diff ↗
  • 0.7.5.1
    record
    2021-02-02 · diff ↗ ·
    added 4 exports
    Layers, LayersR6, Raw, RawR6
  • 0.7.5
    record
    2020-11-19 · diff ↗
  • 0.7.4
    record
    2020-11-04
  • R
    R 4.0.0 released · 2020-04-24

Package metadata

First published
2020-11-04
Total releases
9 / 6 yrs
License
MIT + file LICENSE OSI
Minimum R
≥ 3.5.0
Download size
202 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("anndata")
Cannoodt, R., Angerer, P., Rybakov, S., Virshup, I., & Wolf, A. (2025). anndata: 'anndata' for R (Version 0.8.0) [Computer software]. https://doi.org/10.32614/CRAN.package.anndata

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.

APA

Balamuta, J. J. (2026). R Observatory: Metrics for anndata version 0.8.0 [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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