Struct zipf::ZipfDistribution

pub struct ZipfDistribution<R> { /* fields omitted */ }

Random number generator that generates Zipf-distributed random numbers using rejection inversion.

Methods

impl<R: Rng> ZipfDistribution<R>

fn new(sampler: R, num_elements: usize, exponent: f64) -> Result<Self, ()>

Creates a new Zipf-distributed random number generator.

Note that both the number of elements and the exponent must be greater than 0.

Trait Implementations

impl<R: Rng> Rng for ZipfDistribution<R>

fn next_u32(&mut self) -> u32

Return the next random u32.

fn next_u64(&mut self) -> u64

Return the next random u64.

fn next_f32(&mut self) -> f32

Return the next random f32 selected from the half-open interval [0, 1).

fn next_f64(&mut self) -> f64

Return the next random f64 selected from the half-open interval [0, 1).

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

Fill dest with random data.

fn gen<T>(&mut self) -> T where
    T: Rand, 

Return a random value of a Rand type.

fn gen_iter<T>(&'a mut self) -> Generator<'a, T, Self> where
    T: Rand, 

Return an iterator that will yield an infinite number of randomly generated items.

fn gen_range<T>(&mut self, low: T, high: T) -> T where
    T: SampleRange + PartialOrd<T>, 

Generate a random value in the range [low, high).

fn gen_weighted_bool(&mut self, n: u32) -> bool

Return a bool with a 1 in n chance of true

fn gen_ascii_chars(&'a mut self) -> AsciiGenerator<'a, Self>

Return an iterator of random characters from the set A-Z,a-z,0-9.

fn choose<T>(&mut self, values: &'a [T]) -> Option<&'a T>

Return a random element from values.

fn choose_mut<T>(&mut self, values: &'a mut [T]) -> Option<&'a mut T>

Return a mutable pointer to a random element from values.

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

Shuffle a mutable slice in place.

impl<R: Debug> Debug for ZipfDistribution<R>

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

Formats the value using the given formatter.