Struct rand::distributions::LogNormal [] [src]

pub struct LogNormal { /* fields omitted */ }

The log-normal distribution ln N(mean, std_dev**2).

If X is log-normal distributed, then ln(X) is N(mean, std_dev**2) distributed.

Example

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

// mean 2, standard deviation 3
let log_normal = LogNormal::new(2.0, 3.0);
let v = log_normal.ind_sample(&mut rand::thread_rng());
println!("{} is from an ln N(2, 9) distribution", v)

Methods

impl LogNormal
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Construct a new LogNormal distribution with the given mean and standard deviation.

Panics

Panics if std_dev < 0.

Trait Implementations

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

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

impl Clone for LogNormal
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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 LogNormal
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Generate a random value of Support, using rng as the source of randomness. Read more