cafast: Fast Companions to the 'CAs' Package for Covering Arrays

Compiled implementations and generalizations of selected functions of the 'CAs' package by Ulrike Groemping for covering arrays. The package provides a C version of the search for the largest set of rows that can be made constant by permuting symbols, the power construction of Colbourn and Torres-Jimenez (2010) <doi:10.1090/conm/523/10309> for any strength, number of columns and number of levels, a counting kernel that tabulates value tuples for every set of t columns, and fast versions of the flexible-value tools and of the randomized post-optimization of Nayeri, Colbourn and Konjevod (2013) <doi:10.1016/j.ejc.2012.07.017>. Each function was tested against its 'CAs' counterpart, and the remaining differences are documented.

Version:	0.1.0
Depends:	R (≥ 4.0)
Imports:	CAs
Suggests:	caverify, lhs
Published:	2026-10-28
DOI:	10.32614/CRAN.package.cafast
Author:	Christopher Smolen [aut, cre]
Maintainer:	Christopher Smolen <chrispbsmolen at gmail.com>
BugReports:	https://github.com/chrispbsmolen/ca-tools/issues
License:	GPL (≥ 3)
URL:	https://github.com/chrispbsmolen/ca-tools
NeedsCompilation:	yes
Language:	en-US
Materials:	NEWS
CRAN checks:	cafast results

Documentation:

Reference manual:

cafast.html , cafast.pdf

Downloads:

Package source:	cafast_0.1.0.tar.gz
Windows binaries:	r-devel: cafast_0.1.0.zip, r-release: cafast_0.1.0.zip, r-oldrel: not available
macOS binaries:	r-release (arm64): cafast_0.1.0.tgz, r-oldrel (arm64): cafast_0.1.0.tgz, r-release (x86_64): cafast_0.1.0.tgz, r-oldrel (x86_64): cafast_0.1.0.tgz

Linking:

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