R Observatory: Metrics for risdr version 0.4.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

risdr

0.4.0Package record

Regularised and Information-Theoretic Sufficient Dimension Reduction

0packages depend

703downloads / year

90.1%test coverage

13/13flavors OK

Overview

About

Maintained by Kabir OloredeCRAN page ↗GitHub ↗Website ↗Issues ↗

Implements covariance-stabilised sufficient dimension reduction for continuous responses, with an additional sparse engine for continuous, categorical, and right-censored survival responses and information-theoretic structural dimension selection. Supported methods include sliced inverse regression, sliced average variance estimation, directional regression, and principal Hessian directions. Sample, ridge, Oracle Approximating Shrinkage, Ledoit-Wolf, and Maximum Entropy Covariance (MEC) estimators are provided alongside prediction, resampling, simulation, and diagnostic utilities. The sufficient dimension reduction methods build on Li (1991) doi:10.1080/01621459.1991.10475035, Li (1992) doi:10.1080/01621459.1992.10476258, and Li and Wang (2007) doi:10.1198/016214507000000536. Covariance shrinkage follows Olorede and Yahya (2019) doi:10.48550/arXiv.1909.13017, Ledoit and Wolf (2004) doi:10.1016/S0047-259X(03)00096-4 and Chen et al. (2010) doi:10.1109/TSP.2010.2053029.

Changes in 0.4.0

Sparse and survival SDR

Added fit_risdr_sparse() for joint structural-dimension and sparsity selection with continuous, categorical, and right-censored survival outcomes.
Added fit_risdr_dual() and fit_risdr_sparse_realdata() for high-dimensional predictors, with selected-direction mapping and variable-ranking records.
Added censoring-status/time slicing, canonical pairwise-slice DR kernels, coordinate-level C1F adaptive weights, and complete information-criterion grids.
Retained the frozen thesis convention: Efron Cox partial likelihood, support_penalty = FALSE, and C1F complexity for ICOMP/CICOMP.
Preserved all existing 0.3.1 continuous-response interfaces and defaults. The new engine is explicitly selected through the new entry points.
Added executable survival examples, a migration vignette, provenance records, and regression checks against both the frozen and existing implementations.

From NEWS.md in the release

Install

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

install.packages("risdr", 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("ilovemaths/risdr")

Development version from ilovemaths/risdr. 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-risdr

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-risdr

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-risdr

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: 3.3 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE11 OK, 1 NOTE2026-08-01
OK7 OK2026-07-29

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.4.0

READMEYes · 457 wordsVignettesYes · 6 · dynamicNEWSYes · 100% structured · mentions 0.4.0Citation fileYes · computed when R runs itWebsiteYes · pkgdown

Help pages: 117 (26 internal)includes a package overview page
Examples that run: 100%44 run in a plain check
Exported functions with examples: 55%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 0%

Vignettes (6)

Covariance Regularisation HTML
Environmental Performance Index Case Study HTML
Getting Started with risdr HTML
Simulation Study HTML
Sparse and survival SDR: the frozen thesis engine HTML
Structural Dimension Selection HTML

How these are measured

Downloads

703

CRAN downloads in the past year

Rank #18,520 · ~2/day · ~59/mo

Releases R versions

Daily download trend is not available in this view yet.

26330 days

70390 days

7031 year

Compare downloads with other packages →

Also on14 r2u3 autocran

How downloads are counted

Repository

ilovemaths/risdr ↗Account: ilovemaths

0Stars

0Forks

0Open issues

2Open PRs

2Releases

21Commits

2Commit identities

21 commits · Last activity 2026-10-12

Responsiveness

How these are sampled

PRs merged (all time): 75%
Median days to close, 50 most recently updated closed issues: not measured
Median days to close, 50 most recently updated closed PRs: 0

Releases over time

2026-07-29 · 12026-08-01 · 2

How these are measured

PracticesBeta

16 development-tooling and community-health practices detected across 9 families in the upstream repository

Checks run against github.com/ilovemaths/risdr 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 (5)

Code of conductContributing guideIssue templatesPR templateSecurity policy

Docs source (3)

pkgdown

GitHub Pages site last deployed 2026-10-12 · The repository has a site deploy workflow

pkgdown site last built 2026-10-12

Coverage (1)

Coverage reporting

Show all practicesHide 5 practices

CRAN release process (1)

cran-comments.md

Research and citation (1)

CITATION.cff

Automation and maintenance (1)

Dependabot

Lint, format, editor (1)

RStudio project

Git structural (1)

.gitattributes

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

Dependencies

Declared dependencies

7 external dependencies (excludes base and recommended)

Installing risdr adds no packages beyond those that come with R.

Depends (1)

R >= 4.1.0

Imports (7)

statsgraphicsutilsMASSMatrixsurvivalnnet

LinkingTo (0)

none

Suggests (7)

dplyr knitr readr rmarkdown testthat VIM withr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

Datasets

People & History

People (1)

Kabir Olorede

Author, Maintainer since 0.3.1 (2026)

Releases (2)

Pick two releases to compare their code metrics.

0.4.0Latest
record
2026-10-12 · current release · diff ↗ ·
added 13 exports
C1F, compute_ic, compute_ic_values, compute_penalty_weights, dual_pca_scores, fit_risdr_dual, fit_risdr_sparse, fit_risdr_sparse_realdata, fit_sparse_grid, slice_response, summarise_sparsity, weighted_soft_threshold, weighted_sparsify_directions
0.3.1
record
2026-07-28
R
R 4.6.0 released · 2026-04-24

Package metadata

First published: 2026-07-28
Total releases: 2 / 1 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 4.1.0
Download size: 227 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("risdr")

The package provides a citation file that builds its entry when R runs it. Run citation() to see it.

The repository also keeps a CITATION.cff.

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 risdr version 0.4.0 [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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