Struct RRng 

pub struct RRng { /* private fields */ }

R’s default RNG state: a Mersenne-Twister (MT19937) seeded the R way.

Implementations

impl RRng

pub fn new(seed: i32) -> Self

set.seed(seed) with the default kind = "Mersenne-Twister".

Mirrors R’s RNG_Init: 50 LCG warm-up steps, then 625 LCG outputs filling i_seed[0..624] (the first, mti, is overwritten to 624 by FixupSeeds, leaving the 624-word state in i_seed[1..624]).

pub fn unif_rand(&mut self) -> f64

unif_rand(): a uniform deviate on the open interval (0, 1).

pub fn norm_rand(&mut self) -> f64

norm_rand() with the default normal.kind = "Inversion". Consumes two uniforms for full double precision.

pub fn runif(&mut self, n: usize) -> Vec<f64>

runif(n): n uniform deviates.

pub fn rnorm(&mut self, n: usize) -> Vec<f64>

rnorm(n): n standard normal deviates.