typetracer

0.2.3

Trace Function Parameter Types

0packages depend

2.3Kdownloads / year

83.0%test coverage

11/13checks pass

Overview

About

Maintained by Mark PadghamFirst published 2022-08-273 releasesCRAN page ↗GitHub ↗

The 'R' language includes a set of defined types, but the language itself is "absurdly dynamic" (Turcotte & Vitek (2019) doi:10.1145/3340670.3342426), and lacks any way to specify which types are expected by any expression. The 'typetracer' package enables code to be traced to extract detailed information on the properties of parameters passed to 'R' functions. 'typetracer' can trace individual functions or entire packages.

Install

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

install.packages("typetracer", 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("mpadge/typetracer")

Development version from mpadge/typetracer. 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-typetracer

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-typetracer

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-typetracer

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

Health

CRAN checks

2ERROR11OK

Failing flavors

ERROR r-patched-linux-x86_64
ERROR r-release-linux-x86_64

Slowest check: 1.3 min · r-release-macos-x86_64

Code health

Yes

Tests · ratio 0.26

83.0%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

ERROR2026-06-07
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-06-03
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-02
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-03-10
13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE

Documentation

READMEYes · 1,910 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 80%
Documented parameters: 100%
Return-value docs: 100%
References docs: 0%

Downloads

2.3K

CRAN downloads in the past year

Rank #18,891 · ~6/day · ~188/mo

Releases R versions

Daily download trend is not available in this view yet.

18730 days

59990 days

2.3K1 year

Compare downloads with other packages →

Also on404 r2u26 autocran

Repository

GitHub ↗ mpadge/typetracer

17Stars

1Forks

0Open issues

0Open PRs

3Releases

414Commits

4Contributors

414 commits · Last activity 2026-07-16

Stars over time

2024-06-24 · 172026-07-07 · 17

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/mpadge/typetracer on 2026-07-30.

Continuous integration (1)

GitHub Actions

Reproducibility and dev environment (1)

Makefile

CRAN release process (1)

cran-comments.md

Docs source (1)

README.Rmd

Show all practices

Research and citation (1)

codemeta.json

Automation and maintenance (1)

pre-commit

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

Dependencies

Declared dependencies

9 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (6)

brio checkmatemethodsrlang tibble withr

LinkingTo (0)

none

Suggests (4)

knitr rematch rmarkdown testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (3)

Maintainer (1)

Mark Padgham

Author, Maintainer

Authors (1)

Mark Padgham

Author, Maintainer

Contributors (1)

Filip Krikava

Contributor

covr authors

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
0.2.3Latest
2025-12-03 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
0.2.2
2023-06-26 · diff ↗
R
R 4.3.0 released · 2023-04-21
0.1.1
2022-08-27
R
R 4.2.0 released · 2022-04-22

Package metadata

First published: 2022-08-27
Total releases: 3 / 4 yrs
License: MIT + file LICENSE OSI
Download size: 241 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Report a problem with this page →