Quantity Calculus for R

The quantities package provides integration of the ‘units’ and ‘errors’ packages for a complete quantity calculus system for R vectors, matrices and arrays, with automatic propagation, conversion, derivation and simplification of magnitudes and uncertainties.

Documentation

Blog posts:

1. Quantities for R – First working prototype, Mar 1, 2018.
2. Using quantities to parse data with units and errors, May 7, 2018.
3. Data wrangling operations with quantities, Jun 27, 2018.
4. Quantities for R – Ready for a CRAN release, Aug 31, 2018.

Vignettes:

• A Guide to Working with Quantities.
• Parsing Quantities.

Papers:

• Edzer Pebesma, Thomas Mailund and James Hiebert (2016). “Measurement Units in R.” The R Journal, 8 (2), 486–494. DOI: 10.32614/RJ-2016-061
• Iñaki Ucar, Edzer Pebesma and Arturo Azcorra (2018). “Measurement Errors in R.” The R Journal, 10 (2), 549–557. DOI: 10.32614/RJ-2018-075

Installation

Install the release version from CRAN:

install.packages("quantities")

The installation from GitHub requires the remotes package.

# install.packages("remotes")
remotes::install_github(paste("r-quantities", c("units", "errors", "quantities"), sep="/"))

Acknowledgement

This project gratefully acknowledges financial support from the