[][src]Struct rand::distributions::Exp

pub struct Exp { /* fields omitted */ }

The exponential distribution Exp(lambda).

This distribution has density function: f(x) = lambda * exp(-lambda * x) for x > 0.

Note that [Exp1][crate::distributions::Exp1] is an optimised implementation for lambda = 1.

Example

use rand::distributions::{Exp, Distribution};

let exp = Exp::new(2.0);
let v = exp.sample(&mut rand::thread_rng());
println!("{} is from a Exp(2) distribution", v);

Methods

impl Exp[src]

pub fn new(lambda: f64) -> Exp[src]

Construct a new Exp with the given shape parameter lambda. Panics if lambda <= 0.

Trait Implementations

impl Distribution<f64> for Exp[src]

impl Clone for Exp[src]

impl Copy for Exp[src]

impl Debug for Exp[src]

Auto Trait Implementations

impl Send for Exp

impl Unpin for Exp

impl Sync for Exp

impl UnwindSafe for Exp

impl RefUnwindSafe for Exp

Blanket Implementations

impl<T> ToOwned for T where
    T: Clone
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type Owned = T

The resulting type after obtaining ownership.

impl<T, U> Into<U> for T where
    U: From<T>, 
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impl<T> From<T> for T[src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
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type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> Any for T where
    T: 'static + ?Sized
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