Struct rand::distributions::normal::Normal
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pub struct Normal { /* fields omitted */ }
The normal distribution N(mean, std_dev**2)
.
This uses the ZIGNOR variant of the Ziggurat method, see
StandardNormal
for more details.
Example
use rand::distributions::{Normal, IndependentSample}; // mean 2, standard deviation 3 let normal = Normal::new(2.0, 3.0); let v = normal.ind_sample(&mut rand::thread_rng()); println!("{} is from a N(2, 9) distribution", v)
Methods
impl Normal
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pub fn new(mean: f64, std_dev: f64) -> Normal
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Construct a new Normal
distribution with the given mean and
standard deviation.
Panics
Panics if std_dev < 0
.
Trait Implementations
impl Debug for Normal
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fn fmt(&self, __arg_0: &mut Formatter) -> Result<(), Error>
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Formats the value using the given formatter. Read more
impl Copy for Normal
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impl IndependentSample<f64> for Normal
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fn ind_sample<R>(&self, rng: &mut R) -> f64 where
R: Rng,
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R: Rng,
Generate a random value.
impl Clone for Normal
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fn clone(&self) -> Normal
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more