R Observatory: Metrics for FastHamming version 1.3

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

FastHamming

1.3Package record

Fast Computation of Pairwise Hamming Distances

0packages depend

2.2Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Ravi VaradhanCRAN page ↗

Pairwise Hamming distances are computed between the rows of a binary (0/1) matrix using highly optimized 'C' code. The input is an integer matrix where each row represents a binary feature vector and returns a symmetric integer matrix of pairwise distances. Internally, rows are bit-packed into 64-bit words for fast XOR-based comparisons, with hardware-accelerated popcount operations to count differences. 'OpenMP' parallelization ensures efficient performance for large matrices.

Install

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

install.packages("FastHamming", 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-fasthamming

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-FastHamming

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-FastHamming

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: 1.8 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-23
WARNING12 OK, 1 WARNING2026-08-21
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 1.3

READMENoVignettesNoNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 1
Examples that run: 0%1 only when donttest examples are enabled (R CMD check --as-cran)
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 0%

How these are measured

Downloads

2.2K

CRAN downloads in the past year

Rank #23,173 · ~6/day · ~184/mo

Releases R versions

Daily download trend is not available in this view yet.

18530 days

56290 days

2.2K1 year

Compare downloads with other packages →

Also on376 r2u1 autocran

How downloads are counted

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

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

Depends (1)

R >= 4.0.0

Imports (0)

none

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (1)

Ravi Varadhan

Author, Maintainer since 1.1 (2025)

Releases (3)

Pick two releases to compare their code metrics.

1.3Latest
record
2026-08-21 · current release · diff ↗
R
R 4.6.0 released · 2026-04-24
1.2
record
2025-04-27 · diff ↗
1.1
record
2025-04-25
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2025-04-25
Total releases: 3 / 1 yrs
License: GPL-3 OSI
Minimum R: ≥ 4.0.0
Download size: 3.5 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("FastHamming")

Format

Varadhan, R. (2026). FastHamming: Fast Computation of Pairwise Hamming Distances (Version 1.3) [Computer software]. https://doi.org/10.32614/CRAN.package.FastHamming

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 FastHamming version 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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