R Observatory: Metrics for kko version 1.0.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

kko

1.0.1Package record

Kernel Knockoffs Selection for Nonparametric Additive Models

0packages depend

2.6Kdownloads / year

–test coverage

11/13flavors OK

Overview

About

Maintained by Xiang LyuCRAN page ↗

A variable selection procedure, dubbed KKO, for nonparametric additive model with finite-sample false discovery rate control guarantee. The method integrates three key components: knockoffs, subsampling for stability, and random feature mapping for nonparametric function approximation. For more information, see the accompanying paper: Dai, X., Lyu, X., & Li, L. (2021). “Kernel Knockoffs Selection for Nonparametric Additive Models”. arXiv preprint arXiv:2105.11659.

Install

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

install.packages("kko", 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-kko

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-kko

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-kko

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

2NOTE11OK

Check messages

NOTECRAN incoming feasibilityr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc

Maintainer: ‘Xiang Lyu <xianglyu@berkeley.edu>’

The Description field contains
  Nonparametric Additive Models”. arXiv preprint <arXiv:2105.11659>.
Please refer to arXiv e-prints via their arXiv DOI <doi:10.48550/arXiv.YYMM.NNNNN>.

CRAN check page ↗

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

Status changes

NOTE11 OK, 2 NOTENow
NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.0.1

READMENoVignettesYes · 1 · dynamicNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 6
Examples that run: 100%6 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 0%

Vignettes (1)

Vignette of R package kko

How these are measured

Downloads

2.6K

CRAN downloads in the past year

Rank #18,312 · ~7/day · ~216/mo

Releases R versions

Daily download trend is not available in this view yet.

25730 days

70590 days

2.6K1 year

Compare downloads with other packages →

Also on50 r2u3 autocran

How downloads are counted

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Installing kko adds 18 packages (8 with compiled code, 13 MB of source tarballs). Heaviest: glmnet 2.7 MB, optimx 2.2 MB, nloptr 2.1 MB.

Depends (1)

R >= 3.6.3

Imports (6)

grpreg knockoff doParallelparallelforeach ExtDist

LinkingTo (0)

none

Suggests (3)

knitr rmarkdown ggplot2

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (3)

Xiang Lyu

Author, Maintainer since 1.0.1 (2022)

Xiaowu Dai

Author

Lexin Li

Author

Releases (1)

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
1.0.1Latest
record
2022-02-01 · current release
R
R 4.1.0 released · 2021-05-18

Package metadata

First published: 2022-02-01
Total releases: 1 / 4 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.6.3
Download size: 38 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("kko")

Format

Lyu, X., Dai, X., & Li, L. (2022). kko: Kernel Knockoffs Selection for Nonparametric Additive Models (Version 1.0.1) [Computer software]. https://doi.org/10.32614/CRAN.package.kko

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 kko version 1.0.1 [Data set]. HJJB, LLC. Data release v2026-10-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-21, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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