R Observatory: Metrics for FOCI version 0.1.3

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

FOCI

0.1.3Package record

Feature Ordering by Conditional Independence

3packages dependsuggested by 1

5.3Kdownloads / year

–test coverage

11/13flavors OK

Overview

About

Maintained by Mona AzadkiaCRAN page ↗

Feature Ordering by Conditional Independence (FOCI) is a variable selection algorithm based on the measure of conditional dependence. For more information, see the paper: Azadkia and Chatterjee (2019),"A simple measure of conditional dependence" arXiv:1910.12327.

Install

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

install.packages("FOCI", 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-foci

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-FOCI

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-FOCI

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: ‘Mona Azadkia <monaazadkia@gmail.com>’

The Description field contains
  simple measure of conditional dependence" <arXiv:1910.12327>.
Please refer to arXiv e-prints via their arXiv DOI <doi:10.48550/arXiv.YYMM.NNNNN>.

CRAN check page ↗

Slowest check: 1.5 min · r-oldrel-windows-x86_64

Status changes

NOTE11 OK, 2 NOTENow
NOTE9 OK, 5 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.1.3

READMENoVignettesYes · 2 · dynamicNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 2
Examples that run: 100%2 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 100%

Vignettes (2)

codec HTML
foci HTML

How these are measured

Downloads

5.3K

CRAN downloads in the past year

Rank #7,177 · ~14/day · ~439/mo

Releases R versions

Daily download trend is not available in this view yet.

40630 days

1.2K90 days

5.3K1 year

Compare downloads with other packages →

Also on100 r2u3 autocran686 conda_forge

How downloads are counted

Dependencies

Declared dependencies

7 external dependencies (excludes base and recommended)

Installing FOCI adds 4 packages (4 with compiled code, 6.0 MB of source tarballs). Heaviest: data.table 5.7 MB, gmp 163 KB, proxy 70 KB.

Depends (2)

R >= 3.6.0data.table

Imports (4)

RANN proxyparallelgmp

LinkingTo (0)

none

Suggests (3)

knitr rmarkdown testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

3direct

1indirect

Imports 3

Suggested by 1

Depends, Imports or LinkingTo, most downloaded first

qeML didec PolyTree

Suggests, most downloaded first

FORD

How these are counted

Code & Tests

People & History

People (3)

Mona Azadkia

Author, Maintainer since 0.1.0 (2019)

Sourav Chatterjee

Author, Contributor

Norman Matloff

Author, Contributor · added in 0.1.2

Releases (4)

Pick two releases to compare their code metrics.

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
R
R 4.1.0 released · 2021-05-18
0.1.3Latest
record
2021-03-19 · current release · diff ↗
0.1.2
record
2020-05-16 · diff ↗
R
R 4.0.0 released · 2020-04-24
0.1.1
record
2020-01-07 · diff ↗
0.1.0
record
2019-12-17
R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2019-12-17
Total releases: 4 / 7 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.6.0
Download size: 17 KB

Appears in task views

Machine Learning & Statistical Learning

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("FOCI")

Format

Azadkia, M., Chatterjee, S., & Matloff, N. (2021). FOCI: Feature Ordering by Conditional Independence (Version 0.1.3) [Computer software]. https://doi.org/10.32614/CRAN.package.FOCI

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 FOCI version 0.1.3 [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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