Struct Random 

pub struct Random<R: Rng + ?Sized = ThreadRng> { /* private fields */ }

Legacy Random struct wrapper for backward compatibility This provides the same interface as the original Random struct while delegating to the new modular implementation

Implementations

impl<R: Rng> Random<R>

pub fn sample<D, T>(&mut self, distribution: D) -> T

where D: Distribution<T>,

Sample a value from a distribution

pub fn random_range<T: SampleUniform + PartialOrd + Copy>( &mut self, min: T, max: T, ) -> T

Generate a random value within the given range (inclusive min, exclusive max)

pub fn gen_range<T, RNG>(&mut self, range: RNG) -> T

where T: SampleUniform, RNG: SampleRange<T>,

Generate a random value within the given range (using range syntax)

pub fn random_f64(&mut self) -> f64

Generate a random f64 value between 0.0 and 1.0

pub fn random_f64_raw(&mut self) -> f64

Generate a random f64 value using the underlying RNG (convenience method)

pub fn random_bool(&mut self) -> bool

Generate a random boolean value

pub fn random_bool_with_chance(&mut self, prob: f64) -> bool

Generate a random boolean with the given probability of being true

pub fn shuffle<T>(&mut self, slice: &mut [T])

Shuffle a slice randomly

pub fn sample_vec<D, T>(&mut self, distribution: D, size: usize) -> Vec<T>

where D: Distribution<T> + Copy,

Generate a vector of values sampled from a distribution

pub fn sample_array<D, T, Sh>( &mut self, distribution: D, shape: Sh, ) -> Array<T, IxDyn>

where D: Distribution<T> + Copy, Sh: Into<IxDyn>,

Generate an crate::ndarray::Array from samples of a distribution

impl Random<ThreadRng>

pub fn seed(seed: u64) -> Random<StdRng>

Create a new random number generator with a specific seed

Trait Implementations

impl<R: Rng + Clone> Clone for Random<R>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<R: Debug + Rng + ?Sized> Debug for Random<R>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Random<ThreadRng>

fn default() -> Self

Returns the “default value” for a type.

impl<R: RngCore> RngCore for Random<R>

fn next_u32(&mut self) -> u32

Return the next random u32.

fn next_u64(&mut self) -> u64

Return the next random u64.

fn fill_bytes(&mut self, dest: &mut [u8])

Fill dest with random data.

impl SeedableRng for Random<StdRng>

type Seed = <StdRng as SeedableRng>::Seed

Seed type, which is restricted to types mutably-dereferenceable as u8 arrays (we recommend [u8; N] for some N).

fn from_seed(seed: Self::Seed) -> Self

Create a new PRNG using the given seed.

fn seed_from_u64(state: u64) -> Self

Create a new PRNG using a u64 seed.

fn from_rng(rng: &mut impl RngCore) -> Self

Create a new PRNG seeded from an infallible Rng.

fn try_from_rng<R>(rng: &mut R) -> Result<Self, <R as TryRngCore>::Error>

where R: TryRngCore,

Create a new PRNG seeded from a potentially fallible Rng.

fn from_os_rng() -> Self

Creates a new instance of the RNG seeded via getrandom.

fn try_from_os_rng() -> Result<Self, Error>

Creates a new instance of the RNG seeded via getrandom without unwrapping potential getrandom errors.