R Observatory: Metrics for leakr version 0.1.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

leakr

0.1.0Package record

Data Leakage Detection Tools for Machine Learning

0packages depend

2.6Kdownloads / year

10.9%test coverage

13/13flavors OK

Overview

About

Maintained by Cheryl Isabella LimCRAN page ↗

Provides utilities to detect common data leakage patterns including train/test contamination, temporal leakage, and data duplication, enhancing model reliability and reproducibility in machine learning workflows. Generates diagnostic reports and visual summaries to support data validation. Methods based on best practices from Hastie, Tibshirani, and Friedman (2009, ISBN:978-0387848570).

Changes in 0.1.0

Initial CRAN submission
Core functionality for detecting data leakage in ML workflows:
Train/test contamination detection
Target leakage identification
Duplicate record detection
Temporal misalignment checks
Comprehensive reporting with visual summaries
Integration support for caret, mlr3, and tidymodels

From NEWS.md in the release

Install

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

install.packages("leakr", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

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-leakr

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-leakr

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-leakr

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

13OK

CRAN check page ↗

Slowest check: 2.1 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-09
ERROR12 OK, 1 ERROR2026-06-08
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.1.0

READMEYes · 423 wordsVignettesYes · 3 · dynamicNEWSYes · 67% structured · mentions 0.1.0Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 51 (28 internal)includes a package overview page
Examples that run: 25%2 run in a plain check · 2 only when donttest examples are enabled (R CMD check --as-cran) · 4 never run
Exported functions with examples: 30%
Documented parameters: 98%
Return-value docs: 100%
Help pages citing references: 0%

Vignettes (3)

Advanced Leakage Detection with leakr HTML
Framework Integration with leakr HTML
Getting Started with leakr HTML

How these are measured

Downloads

2.6K

CRAN downloads in the past year

Rank #20,274 · ~7/day · ~220/mo

Releases R versions

Daily download trend is not available in this view yet.

23330 days

65890 days

2.6K1 year

Compare downloads with other packages →

Also on62 r2u4 autocran

How downloads are counted

Dependencies

Declared dependencies

16 external dependencies (excludes base and recommended)

Installing leakr adds 74 packages (37 with compiled code, 55 MB of source tarballs). Heaviest: stringi 11 MB, ggplot2 6.0 MB, data.table 5.7 MB.

Depends (0)

none

Imports (10)

ggplot2 arrow data.table digest htmltools openxlsx readxl stringr workflows jsonlite

LinkingTo (0)

none

Suggests (6)

testthat caret mlr3 tidymodels knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (1)

Cheryl Isabella Lim

Author, Maintainer since 0.1.0 (2025)

Listed in earlier versions (1)

Lim

no longer listed · 0.1.0

Releases (1)

R
R 4.6.0 released · 2026-04-24
0.1.0Latest
record
2025-10-26 · current release
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2025-10-26
Total releases: 1 / 1 yrs
License: MIT + file LICENSE OSI
Download size: 113 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("leakr")

Format

Lim, C. I. (2025). leakr: Data Leakage Detection Tools for Machine Learning (Version 0.1.0) [Computer software]. https://doi.org/10.32614/CRAN.package.leakr

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 leakr version 0.1.0 [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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