R Observatory: Metrics for FNN version 1.1.4.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

FNN

1.1.4.1Package record

Fast Nearest Neighbor Search Algorithms and Applications

112packages dependsuggested by 23

1.4Mdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Shengqiao LiCRAN page ↗

Cover-tree and kd-tree fast k-nearest neighbor search algorithms and related applications including KNN classification, regression and information measures are implemented.

Install

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

install.packages("FNN", 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-fnn

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-FNN

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-FNN

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: 3.2 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.1.4.1

READMENoVignettesNoNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 13
Examples that run: 100%9 run in a plain check
Exported functions with examples: 75%
Documented parameters: 90%
Return-value docs: 100%
Help pages citing references: 85%

How these are measured

Downloads

1.4M

CRAN downloads in the past year

Rank #342 · ~3.7K/day · ~112.9K/mo

Releases R versions

Daily download trend is not available in this view yet.

105.3K30 days

293K90 days

1.4M1 year

Compare downloads with other packages →

Also on45.7K r2u8 autocran219.3K conda_forge280 bioconda1.2K c2d4u

How downloads are counted

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

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

Depends (1)

R >= 4.0.0

Imports (0)

none

LinkingTo (0)

none

Suggests (2)

chemometrics mvtnorm

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

112direct

428indirect

Depends 6 · Imports 106

Suggested by 23

Show the 48 most downloaded dependentsHide the 48 most downloaded dependents

Depends, Imports or LinkingTo, most downloaded first

and 64 more dependents and 23 packages that suggest it on CRAN ↗

How these are counted

Code & Tests

People & History

People (6)

Shengqiao Li

Author, Maintainer since 0.3-1 (2010)

Sunil Arya

Author · added in 1.1

ANN library 1.1.2 for the kd-tree approach

Alina Beygelzimer

Author · added in 1.1

cover tree library

Sham Kakadet

Author · added in 1.1

cover tree library

John Langford

Author · added in 1.1

cover tree library

David Mount

Author · added in 1.1

ANN library 1.1.2 for the kd-tree approach

Releases (18)

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
1.1.4.1Latest
record
2024-09-22 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
1.1.4
record
2024-01-12 · diff ↗
R
R 4.3.0 released · 2023-04-21
1.1.3.2
record
2023-03-20 · diff ↗
1.1.3.1
record
2022-05-23 · diff ↗
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
unarchivedReturned to CRAN
2019-02-16
NMU by CRAN team on 2023-03-20 (version 1.1.3.2)
1.1.3
record
2019-02-16 · diff ↗
1.1.2.2
record
2018-12-10 · diff ↗
orphanedOrphaned by its maintainer
2018-08-10
C++ issues were not corrected since 2017 despite reminders

Show 24 earlier eventsHide 24 earlier events

1.1.2.1
record
2018-08-10 · diff ↗
1.1.2
record
2018-08-02 · diff ↗
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
R
R 3.2.0 released · 2015-04-16
R
R 3.1.0 released · 2014-04-10
1.1
record
2013-07-31 · diff ↗ ·
added 1 export
mutinfo
1.0
record
2013-05-19 · diff ↗
R
R 3.0.0 released · 2013-04-03
0.6-4
record
2012-10-17 · diff ↗ ·
added 1 export
ownn
0.6-3
record
2012-04-03 · diff ↗
R
R 2.15.0 released · 2012-03-30
R
R 2.14.0 released · 2011-10-31
R
R 2.13.0 released · 2011-04-13
R
R 2.12.0 released · 2010-10-15
0.6-2
record
2010-08-11 · diff ↗
0.6-0
record
2010-05-19 · diff ↗
0.5-9
record
2010-05-10 · diff ↗
0.5-8
record
2010-04-28 · diff ↗
R
R 2.11.0 released · 2010-04-22
0.4-6
record
2010-04-02 · diff ↗ ·
removed 1 export
KLD.dist

added 5 exports
entropy, crossentropy, KL.divergence, KLx.divergence, KLx.dist
0.3-1
record
2010-03-17
R
R 2.10.0 released · 2009-10-26

Package metadata

First published: 2010-03-17
Total releases: 18 / 16 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 4.0.0
Download size: 77 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("FNN")

Format

Li, S., Arya, S., Beygelzimer, A., Kakadet, S., Langford, J., & Mount, D. (2024). FNN: Fast Nearest Neighbor Search Algorithms and Applications (Version 1.1.4.1) [Computer software]. https://doi.org/10.32614/CRAN.package.FNN

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 FNN version 1.1.4.1 [Data set]. HJJB, LLC. Data release v2026-10-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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