[−][src]Struct rand::distributions::LogNormal
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, Distribution}; // mean 2, standard deviation 3 let log_normal = LogNormal::new(2.0, 3.0); let v = log_normal.sample(&mut rand::thread_rng()); println!("{} is from an ln N(2, 9) distribution", v)
Methods
impl LogNormal
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pub fn new(mean: f64, std_dev: f64) -> 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 Distribution<f64> for LogNormal
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fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> f64
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ⓘImportant traits for DistIter<'a, D, R, T>fn sample_iter<'a, R>(&'a self, rng: &'a mut R) -> DistIter<'a, Self, R, T> where
Self: Sized,
R: Rng,
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ⓘImportant traits for DistIter<'a, D, R, T>
Self: Sized,
R: Rng,
impl Clone for LogNormal
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impl Copy for LogNormal
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impl Debug for LogNormal
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Auto Trait Implementations
impl Send for LogNormal
impl Unpin for LogNormal
impl Sync for LogNormal
impl UnwindSafe for LogNormal
impl RefUnwindSafe for LogNormal
Blanket Implementations
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> From<T> for T
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,