dqrng

Several fast random number generators are provided as C++ header only libraries: The PCG family by O'Neill (2014 https://www.cs.hmc.edu/tr/hmc-cs-2014-0905.pdf) 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'.

Last 30 days

This package has been downloaded 34,574 times in the last 30 days. That's enough downloads to make it mildly famous in niche technical communities. A badge of honor! The following heatmap shows the distribution of downloads per day. Yesterday, it was downloaded 618 times.

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Last 365 days

This package has been downloaded 450,756 times in the last 365 days. That's a whole lot of downloads. Somewhere, a librarian is trying to figure out why more bandwidth is needed. The day with the most downloads was May 29, 2024 with 5,052 downloads.

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