lobstr: Visualize R Data Structures with Trees

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.

Version:	1.2.0
Depends:	R (≥ 3.6.0)
Imports:	crayon, methods, prettyunits, rlang (≥ 1.0.0)
LinkingTo:	cpp11 (≥ 0.4.2)
Suggests:	covr, pillar, pkgdown, testthat (≥ 3.0.0)
Published:	2026-02-18
DOI:	10.32614/CRAN.package.lobstr
Author:	Hadley Wickham [aut, cre], Posit Software, PBC [cph, fnd]
Maintainer:	Hadley Wickham <hadley at posit.co>
BugReports:	https://github.com/r-lib/lobstr/issues
License:	MIT + file LICENSE
URL:	https://lobstr.r-lib.org/, https://github.com/r-lib/lobstr
NeedsCompilation:	yes
Materials:	README, NEWS
CRAN checks:	lobstr results

Documentation:

Reference manual:

lobstr.html , lobstr.pdf

Downloads:

Package source:	lobstr_1.2.0.tar.gz
Windows binaries:	r-devel: lobstr_1.2.0.zip, r-release: lobstr_1.2.0.zip, r-oldrel: lobstr_1.2.0.zip
macOS binaries:	r-release (arm64): lobstr_1.2.0.tgz, r-oldrel (arm64): lobstr_1.2.0.tgz, r-release (x86_64): lobstr_1.2.0.tgz, r-oldrel (x86_64): lobstr_1.2.0.tgz
Old sources:	lobstr archive

Reverse dependencies:

Reverse imports:	brclimr, butcher, carrier, httping, interfacer, potions, REDCapTidieR, reproducible, sourcoise, SpaDES.core, traktok
Reverse suggests:	cpp11, dataquieR, DelayedArray, dplyr, duckplyr, einops, genio, gginnards, glyrepr, kidsides, nestedLogit, R6, spatialLIBD, sport, tmap

Linking:

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