R Observatory: Metrics for lobstr version 1.2.2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

lobstr

1.2.2Package record

Visualize R Data Structures with Trees

13packages dependsuggested by 14

789.7Kdownloads / year

48.3%test coverage

10/13flavors OK

Overview

About

Maintained by Hadley WickhamCRAN page ↗GitHub ↗Website ↗Issues ↗Declared funder: Posit Software, PBC

A set of tools for inspecting and understanding R data structures inspired by str(). Includes ast() for visualizing abstract syntax trees, ref() for showing shared references, cst() for showing call stack trees, and obj_size() for computing object sizes.

Changes in 1.2.2

Fixes for CRAN checks.

From NEWS.md in the release

Install

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

install.packages("lobstr", 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-lib/lobstr")

Development version from r-lib/lobstr. 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-lobstr

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-lobstr

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-lobstr

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

3NOTE10OK

Check messages

NOTEcompiled coder-oldrel-macos-arm64, r-oldrel-macos-x86_64, r-oldrel-windows-x86_64

r-oldrel-macos-arm64, r-oldrel-macos-x86_64

File ‘lobstr/libs/lobstr.so’:
  Found non-API calls to R: ‘PRENV’, ‘PRVALUE’, ‘R_PromiseExpr’,
    ‘Rf_allocSExp’, ‘Rf_findVarInFrame3’, ‘SETLENGTH’,
    ‘SET_GROWABLE_BIT’, ‘SET_PRCODE’, ‘SET_PRENV’, ‘SET_PRVALUE’,
    ‘SET_TRUELENGTH’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.

r-oldrel-windows-x86_64

File 'lobstr/libs/x64/lobstr.dll':
  Found non-API calls to R: 'PRENV', 'PRVALUE', 'R_PromiseExpr',
    'Rf_allocSExp', 'Rf_findVarInFrame3', 'SETLENGTH',
    'SET_GROWABLE_BIT', 'SET_PRCODE', 'SET_PRENV', 'SET_PRVALUE',
    'SET_TRUELENGTH'

Compiled code should not call non-API entry points in R.

See 'Writing portable packages' in the 'Writing R Extensions' manual,
and section 'Moving into C API compliance' for issues with the use of
non-API entry points.

CRAN check page ↗

Slowest check: 2.7 min · r-devel-windows-x86_64

Status changes

NOTE10 OK, 3 NOTENow
NOTE10 OK, 4 NOTE2026-04-09
WARNING3 OK, 10 NOTE, 1 WARNING2026-03-17
NOTE3 OK, 11 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.2.2

READMEYes · 133 wordsVignettesNoNEWSYes · 100% structured · mentions 1.2.2Citation fileNoWebsiteYes · pkgdown

Help pages: 11 (1 internal)includes a package overview page
Examples that run: 100%8 run in a plain check
Exported functions with examples: 80%
Documented parameters: 100%
Return-value docs: 30%
Help pages citing references: 0%

How these are measured

Downloads

789.7K

CRAN downloads in the past year

Rank #511 · ~2.2K/day · ~65.8K/mo

Releases R versions

Daily download trend is not available in this view yet.

41.9K30 days

141.2K90 days

789.7K1 year

Compare downloads with other packages →

Also on14.5K r2u165 autocran162.9K conda_forge278 c2d4u

How downloads are counted

Repository

r-lib/lobstr ↗Organization: r-lib

314Stars

31Forks

19Open issues

0Open PRs

8Releases

384Commits

12Commit identities

r

384 commits · Last activity 2026-09-01 · 0% stars, 30d · Default branch at 1.2.2.9000, ahead of CRAN 1.2.2 (checked 2026-10-22)

Responsiveness

How these are sampled

PRs merged (all time): 92%
Median days to close, 50 most recently updated closed issues: 34
Median days to close, 50 most recently updated closed PRs: 6

Stars over time

2025-08-08 · 3072026-07-07 · 314

How these are measured

PracticesBeta

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

Checks run against github.com/r-lib/lobstr on 2026-10-22.

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 (1)

Code of conduct

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2026-09-01 · The repository has a site deploy workflow

pkgdown site last built 2026-09-01

Coverage (2)

Coverage reporting (Codecov).covrignore

Show all practicesHide 2 practices

CRAN release process (2)

cran-comments.mdrevdep/

Lint, format, editor (4)

Lint workflowAirVS CodeRStudio project

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

AI coding toolsBeta

This repository shows signs of AI coding tools.

Claude Codefirst seen 2025-11-13
Seen in the repository: .claude, .claude/skills
Named in .Rbuildignore: .claude

How this is detected·Detection ruleset v4 (updated 2026-09-27)

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Installing lobstr adds 4 packages (1 with compiled code, 1.2 MB of source tarballs). Heaviest: rlang 766 KB, cpp11 298 KB, prettyunits 95 KB.

Depends (1)

R >= 3.6.0

Imports (4)

crayonmethodsprettyunits rlang

LinkingTo (1)

cpp11

Suggests (4)

covr pillar pkgdown testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

13direct

26indirect

Imports 13

Suggested by 14

Show all 27 packagesHide all 27 packages

Depends, Imports or LinkingTo, most downloaded first

carrier butcher reproducible SpaDES.core REDCapTidieR brclimr sourcoise interfacer kerasnip potions rwicc httping traktok

Suggests, most downloaded first

dplyr R6 cpp11 tmap nestedLogit gginnards duckplyr genio dataquieR glyrepr sport kidsides fluffy einops

How these are counted

Code & Tests

People & History

People (2)

Hadley Wickham

Author, Maintainer since 1.0.0 (2018)

Posit Software, PBC

Copyright holder, Funder · added in 1.1.3

Listed in earlier versions (1)

RStudio

no longer listed · 1.0.0 to 1.1.2

Releases (9)

Pick two releases to compare their code metrics.

1.2.2Latest
record
2026-09-01 · current release · diff ↗
R
R 4.6.0 released · 2026-04-24
1.2.1
record
2026-04-04 · diff ↗
1.2.0
record
2026-02-18 · diff ↗ ·
added 1 export
src
1.1.3
record
2025-11-14 · diff ↗
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
1.1.2
record
2022-06-23 · diff ↗ ·
added 2 exports
tree, tree_label
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
1.1.1
record
2019-07-03 · diff ↗
1.1.0
record
2019-06-20 · diff ↗ ·
added 1 export
sxp
unarchivedReturned to CRAN
2019-06-19
archivedRemoved from CRAN
2019-05-12
check problems were not corrected in time

Show 4 earlier eventsHide 4 earlier events

R
R 3.6.0 released · 2019-04-26
1.0.1
record
2018-12-21 · diff ↗
1.0.0
record
2018-11-04
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2018-11-04
Total releases: 9 / 8 yrs
License: MIT + file LICENSE OSI · relicensed from GPL-3 in 1.1.2
Minimum R: ≥ 3.6.0
Download size: 125 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("lobstr")

Format

Wickham, H., & Posit Software, PBC. (2026). lobstr: Visualize R Data Structures with Trees (Version 1.2.2) [Computer software]. https://doi.org/10.32614/CRAN.package.lobstr

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 lobstr version 1.2.2 [Data set]. HJJB, LLC. Data release v2026-10-23. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-23, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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