High Performance Container Data Types R package collections version 0.3.12 Provides high performance container data types such as queues, stacks, deques, dicts and ordered dicts. Benchmarks <https://randy3k.github.io/collections/articles/benchmark.html> have shown that these containers are asymptotically more efficient than those offered by other packages. Software Suggests: testthat (>= 2.3.1) Randy Lai <randy.cs.lai@gmail.com> Comprehensive R Archive Network (CRAN) Randy Lai [aut, cre], Andrea Mazzoleni [cph] (tommy hash table library), Yann Collet [cph] (xxhash algorithm) MIT + file LICENSE (https://CRAN.R-project.org/package=collections/LICENSE) 2026-03-22 application/tgz https://CRAN.R-project.org/package=collections doi:10.32614/CRAN.package.collections