Measurement Units for R Vectors R package units version 1.0-1 CRAN Task View: ChemPhys (https://CRAN.R-project.org/view=ChemPhys) Support for measurement units in R vectors, matrices and arrays: automatic propagation, conversion, derivation and simplification of units; raising errors in case of unit incompatibility. Compatible with the POSIXct, Date and difftime classes. Uses the UNIDATA udunits library and unit database for unit compatibility checking and conversion. Documentation about 'units' is provided in the paper by Pebesma, Mailund & Hiebert (2016, <doi:10.32614/RJ-2016-061>), included in this package as a vignette; see 'citation("units")' for details. Software Depends: R (>= 3.5.0) Imports: Rcpp LinkingTo: Rcpp (>= 1.1.0) Suggests: NISTunits, measurements, xml2, magrittr, pillar (>= 1.3.0), dplyr (>= 1.0.0), vctrs (>= 0.3.1), ggplot2 (> 3.2.1), testthat (>= 3.0.0), vdiffr, knitr, rvest, rmarkdown Edzer Pebesma <edzer.pebesma@uni-muenster.de> Comprehensive R Archive Network (CRAN) Edzer Pebesma [aut, cre] (ORCID: <https://orcid.org/0000-0001-8049-7069>), Thomas Mailund [aut], Tomasz Kalinowski [aut], James Hiebert [ctb], Iñaki Ucar [aut] (ORCID: <https://orcid.org/0000-0001-6403-5550>), Thomas Lin Pedersen [ctb] GPL-2 2026-03-11 application/tgz https://CRAN.R-project.org/package=units doi:10.32614/CRAN.package.units