fjoin: Data Frame Joins Leveraging 'data.table'

Extends 'data.table' join functionality, lets it work with any data frame class, and provides a familiar 'x'/'y'-style interface, enabling broad use across R. Offers NA-safe matching by default, on-the-fly column selection, multiple match-handling on both sides, 'x' or 'y' row order, and a row origin indicator. Performs inner, left, right, full, semi- and anti-joins with equality and inequality conditions, plus cross joins. Specific support for 'data.table', (grouped) tibble, and 'sf'/'sfc' objects and their attributes; returns a plain data frame otherwise. Avoids data-copying of inputs and outputs. Allows displaying the 'data.table' code instead of (or as well as) executing it.

Version:	0.1.0
Depends:	R (≥ 3.3.0)
Imports:	data.table
Suggests:	dplyr (≥ 1.1.0), sf, testthat (≥ 3.0.0), knitr, rmarkdown, quarto, bench, ggplot2
Published:	2025-12-11
DOI:	10.32614/CRAN.package.fjoin
Author:	Toby Robertson [aut, cre]
Maintainer:	Toby Robertson <trobx at proton.me>
BugReports:	https://github.com/trobx/fjoin/issues
License:	MIT + file LICENSE
URL:	https://trobx.github.io/fjoin/
NeedsCompilation:	no
Materials:	README, NEWS
CRAN checks:	fjoin results

Documentation:

Reference manual:	fjoin.html , fjoin.pdf
Vignettes:	Guide to fjoin (source, R code)

Downloads:

Package source:	fjoin_0.1.0.tar.gz
Windows binaries:	r-devel: fjoin_0.1.0.zip, r-release: fjoin_0.1.0.zip, r-oldrel: fjoin_0.1.0.zip
macOS binaries:	r-release (arm64): fjoin_0.1.0.tgz, r-oldrel (arm64): fjoin_0.1.0.tgz, r-release (x86_64): fjoin_0.1.0.tgz, r-oldrel (x86_64): fjoin_0.1.0.tgz

Linking:

Please use the canonical form https://CRAN.R-project.org/package=fjoin to link to this page.