Struct rand::distributions::normal::LogNormal
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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)Run
Methods
impl LogNormal[src]
fn new(mean: f64, std_dev: f64) -> LogNormal
Construct a new LogNormal distribution with the given mean
and standard deviation.
Panics
Panics if std_dev < 0.
Trait Implementations
impl Clone for LogNormal[src]
fn clone(&self) -> LogNormal
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)1.0.0
Performs copy-assignment from source. Read more
impl Copy for LogNormal[src]
impl Sample<f64> for LogNormal[src]
fn sample<R: Rng>(&mut self, rng: &mut R) -> f64
Generate a random value of Support, using rng as the source of randomness. Read more
impl IndependentSample<f64> for LogNormal[src]
fn ind_sample<R: Rng>(&self, rng: &mut R) -> f64
Generate a random value.