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

pub struct Exp { /* fields omitted */ }

The exponential distribution Exp(lambda).

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

Example

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

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

Methods

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

Trait Implementations

impl Debug for Exp
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Formats the value using the given formatter. Read more

impl Copy for Exp
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impl IndependentSample<f64> for Exp
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Generate a random value.

impl Clone for Exp
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Returns a copy of the value. Read more

1.0.0
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Performs copy-assignment from source. Read more

impl Sample<f64> for Exp
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Generate a random value of Support, using rng as the source of randomness. Read more