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.

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.

Blog posts:

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

Vignettes:

Papers:

- Edzer Pebesma, Thomas Mailund and James Hiebert (2016). "Measurement Units in R."
*The R Journal*, 8 (2), 486--494 [online]. - Iñaki Ucar, Edzer Pebesma, Arturo Azcorra (2018). "Measurement Errors in R." arXiv [online].

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="/"))`

This project gratefully acknowledges financial support from the

- Add delayed S3 registration mechanism for R >= 3.6.0 (a9bb97e).

- Initial CRAN release.