zuexact: Exactly Rounded Sums, Means and Dot Products
Sums of double-precision numbers computed exactly and rounded
once, so the result is the correctly rounded true sum and does not depend
on the order of the elements, the platform, or whether R was built with
long doubles. Built on the small and large superaccumulators of Neal
(2015) <doi:10.48550/arXiv.1505.05571>. Provides exactly rounded sums,
means, cumulative sums, dot products and norms, row, column and grouped
sums, accumulators that can be built in pieces and merged across
processes, and a registered 'C' interface for other packages.
| Version: |
0.1.0 |
| Depends: |
R (≥ 4.1) |
| Suggests: |
gmp, knitr, parallel, PreciseSums, rmarkdown, testthat (≥
3.0.0), withr |
| Published: |
2026-10-22 |
| DOI: |
10.32614/CRAN.package.zuexact (may not be active yet) |
| Author: |
Pedro Baltazar [aut, cre, cph],
Radford M. Neal [cph] (Author of the vendored 'xsum' library) |
| Maintainer: |
Pedro Baltazar <pedrobtz at gmail.com> |
| BugReports: |
https://github.com/pedrobtz/zuexact/issues |
| License: |
MIT + file LICENSE |
| Copyright: |
see file COPYRIGHTS |
| URL: |
https://pedrobtz.github.io/zuexact/,
https://github.com/pedrobtz/zuexact |
| NeedsCompilation: |
yes |
| SystemRequirements: |
C99 |
| Language: |
en-GB |
| Materials: |
README, NEWS |
| CRAN checks: |
zuexact results |
Documentation:
Downloads:
Linking:
Please use the canonical form
https://CRAN.R-project.org/package=zuexact
to link to this page.