Several fast random number generators are provided as C++ header only libraries: The PCG family by O'Neill (2014 as well as the Xoroshiro / Xoshiro family by Blackman and Vigna (2021 doi:10.1145/3460772 ). In addition fast functions for generating random numbers according to a uniform, normal and exponential distribution are included. The latter two use the Ziggurat algorithm originally proposed by Marsaglia and Tsang (2000, doi:10.18637/jss.v005.i08 ). The fast sampling methods support unweighted sampling both with and without replacement. These functions are exported to R and as a C++ interface and are enabled for use with the default 64 bit generator from the PCG family, Xoroshiro128+/++/** and Xoshiro256+/++/** as well as the 64 bit version of the 20 rounds Threefry engine (Salmon et al., 2011, doi:10.1145/2063384.2063405 ) as provided by the package 'sitmo'.


Maintainer: Ralf Stubner (ORCID)

Other contributors:

  • daqana GmbH [copyright holder]

  • David Blackman (Xoroshiro / Xoshiro family) [copyright holder]

  • Melissa O'Neill (PCG family) [copyright holder]

  • Sebastiano Vigna (Xoroshiro / Xoshiro family) [copyright holder]

  • Aaron Lun [contributor]

  • Kyle Butts [contributor]

  • Henrik Sloot [contributor]

  • Philippe Grosjean (ORCID) [contributor]