R Observatory: Metrics for MRIreduce version 1.0.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

MRIreduce

1.0.0

ROI-Based Transformation of Neuroimages into High-Dimensional Data Frames

0packages depend

1.4Kdownloads / year

10.9%test coverage

12/13checks pass

Overview

About

Maintained by Jinyao TianFirst published 2026-04-221 releasesCRAN page ↗

Converts NIfTI format T1/FL neuroimages into structured, high-dimensional 2D data frames with a focus on region of interest (ROI) based processing. The package incorporates the partition algorithm, which offers a flexible framework for agglomerative partitioning based on the Direct-Measure-Reduce approach. This method ensures that each reduced variable maintains a user-specified minimum level of information while remaining interpretable, as each maps uniquely to one variable in the reduced dataset. The partition framework is described in Millstein et al. (2020) doi:10.1093/bioinformatics/btz661. The package allows customization in variable selection, measurement of information loss, and data reduction methods for neuroimaging analysis and machine learning workflows.

Install

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

install.packages("MRIreduce", 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-mrireduce

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-MRIreduce

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-MRIreduce

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

Health

CRAN checks

1NOTE12OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang

Slowest check: 3.4 min · r-oldrel-macos-x86_64

Code health

Yes

Tests · ratio 0.03

10.9%

Coverage · measured lines

100%

Documentation · exports

9

Dependencies · direct

Check history

NOTE2026-06-09
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
11 OK · 1 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-04-25
9 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-22
5 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE

Documentation

READMEYes · 386 wordsVignettesYes · dynamicpkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 20%
Documented parameters: 100%
Return-value docs: 86%
References docs: 0%

Downloads

1.4K

CRAN downloads in the past year

Rank #10,946 · ~4/day · ~116/mo

Releases R versions

Daily download trend is not available in this view yet.

15430 days

89290 days

1.4K1 year

Compare downloads with other packages →

Also on116 r2u14 autocran

Repository

GitHub ↗ uscbiostats/mrireduce

0Stars

2Forks

0Open issues

1Open PRs

0Releases

40Commits

1Contributors

License Unlicense · 40 commits · Last activity 2025-01-27

Forks over time

2025-06-23 · 22026-07-07 · 2

Repository practices

Upstream repositoryBeta

3 development-tooling and community-health practices detected across 3 families in the upstream repository

Checks run against github.com/uscbiostats/mrireduce on 2026-08-16.

Continuous integration (1)

GitHub Actions

Docs source (1)

README.Rmd

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

14 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (9)

R6 Rcpp fslr neurobase oro.niftiparallelpartition reshape2 reticulate

LinkingTo (1)

Rcpp

Suggests (5)

DT EveTemplate knitr rmarkdown testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (2)

Maintainer (1)

Jinyao Tian

Author, Maintainer

Authors (2)

Jinyao Tian

Author, Maintainer

Joshua Milstein

Author

Package Timeline

1 release. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
1.0.0Latest
2026-04-22 · current release
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2026-04-22
Total releases: 1 / 1 yrs
License: MIT + file LICENSE OSI
Additional repositories: neuroconductor.org
Minimum R: ≥ 3.5.0
Download size: 641 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("MRIreduce")

Format

Tian, J., & Milstein, J. (2026). MRIreduce: ROI-Based Transformation of Neuroimages into High-Dimensional Data Frames (Version 1.0.0) [Computer software]. https://doi.org/10.32614/CRAN.package.MRIreduce

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

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 MRIreduce version 1.0.0 [Data set]. HJJB, LLC. Data release v2026-08-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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