[−][src]Struct rv::dist::Laplace
Laplace, or double exponential, distribution over x in (-∞, ∞).
Example
use rv::prelude::*; let laplace = Laplace::new(0.0, 1.0).expect("Invalid params"); // 100 draws from Laplace let mut rng = rand::thread_rng(); let xs: Vec<f64> = laplace.sample(100, &mut rng); assert_eq!(xs.len(), 100);
Implementations
impl Laplace
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pub fn new(mu: f64, b: f64) -> Result<Self, LaplaceError>
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Create a new Laplace distribution.
pub fn new_unchecked(mu: f64, b: f64) -> Self
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Creates a new Laplace without checking whether the parameters are valid.
pub fn mu(&self) -> f64
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Get the mu parameter
Examples
let laplace = Laplace::new(-1.0, 2.0).unwrap(); assert_eq!(laplace.mu(), -1.0);
pub fn set_mu(&mut self, mu: f64) -> Result<(), LaplaceError>
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Set the value of the mu parameter
Example
let mut laplace = Laplace::new(-1.0, 2.0).unwrap(); assert_eq!(laplace.mu(), -1.0); laplace.set_mu(2.3).unwrap(); assert_eq!(laplace.mu(), 2.3);
Will error for invalid values
assert!(laplace.set_mu(0.0).is_ok()); assert!(laplace.set_mu(std::f64::INFINITY).is_err()); assert!(laplace.set_mu(std::f64::NEG_INFINITY).is_err()); assert!(laplace.set_mu(std::f64::NAN).is_err());
pub fn set_mu_unchecked(&mut self, mu: f64)
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Set the value of the mu parameter without input validation
pub fn b(&self) -> f64
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Get the b parameter
Examples
let laplace = Laplace::new(-1.0, 2.0).unwrap(); assert_eq!(laplace.b(), 2.0);
pub fn set_b(&mut self, b: f64) -> Result<(), LaplaceError>
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Set the value of the b parameter
Example
let mut laplace = Laplace::new(-1.0, 2.0).unwrap(); assert_eq!(laplace.b(), 2.0); laplace.set_b(2.3).unwrap(); assert_eq!(laplace.b(), 2.3);
Will error for invalid values
assert!(laplace.set_b(2.3).is_ok()); assert!(laplace.set_b(0.0).is_err()); assert!(laplace.set_b(std::f64::INFINITY).is_err()); assert!(laplace.set_b(std::f64::NEG_INFINITY).is_err()); assert!(laplace.set_b(std::f64::NAN).is_err());
pub fn set_b_unchecked(&mut self, b: f64)
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Set the value of the b parameter without input validation
Trait Implementations
impl Cdf<f32> for Laplace
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impl Cdf<f64> for Laplace
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impl Clone for Laplace
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impl ContinuousDistr<f32> for Laplace
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impl ContinuousDistr<f64> for Laplace
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impl Debug for Laplace
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impl Default for Laplace
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Laplace with mean 0 and variance 1
impl Display for Laplace
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impl Entropy for Laplace
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impl<'_> From<&'_ Laplace> for String
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impl Kurtosis for Laplace
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impl Mean<f32> for Laplace
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impl Mean<f64> for Laplace
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impl Median<f32> for Laplace
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impl Median<f64> for Laplace
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impl Mode<f32> for Laplace
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impl Mode<f64> for Laplace
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impl PartialEq<Laplace> for Laplace
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impl Rv<f32> for Laplace
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fn ln_f(&self, x: &f32) -> f64
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fn draw<R: Rng>(&self, rng: &mut R) -> f32
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fn f(&self, x: &X) -> f64
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fn sample<R: Rng>(&self, n: usize, rng: &mut R) -> Vec<X>
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fn sample_stream<'r, R: Rng>(
&'r self,
rng: &'r mut R
) -> Box<dyn Iterator<Item = X> + 'r>
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&'r self,
rng: &'r mut R
) -> Box<dyn Iterator<Item = X> + 'r>
impl Rv<f64> for Laplace
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fn ln_f(&self, x: &f64) -> f64
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fn draw<R: Rng>(&self, rng: &mut R) -> f64
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fn f(&self, x: &X) -> f64
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fn sample<R: Rng>(&self, n: usize, rng: &mut R) -> Vec<X>
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fn sample_stream<'r, R: Rng>(
&'r self,
rng: &'r mut R
) -> Box<dyn Iterator<Item = X> + 'r>
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&'r self,
rng: &'r mut R
) -> Box<dyn Iterator<Item = X> + 'r>
impl Skewness for Laplace
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impl StructuralPartialEq for Laplace
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impl Support<f32> for Laplace
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impl Support<f64> for Laplace
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impl Variance<f32> for Laplace
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impl Variance<f64> for Laplace
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Auto Trait Implementations
impl RefUnwindSafe for Laplace
impl Send for Laplace
impl Sync for Laplace
impl Unpin for Laplace
impl UnwindSafe for Laplace
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
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<Fx, X> Cdf<X> for Fx where
Fx: Deref,
<Fx as Deref>::Target: Cdf<X>,
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Fx: Deref,
<Fx as Deref>::Target: Cdf<X>,
impl<Fx, X> ContinuousDistr<X> for Fx where
Fx: Deref,
<Fx as Deref>::Target: ContinuousDistr<X>,
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Fx: Deref,
<Fx as Deref>::Target: ContinuousDistr<X>,
impl<Fx> Entropy for Fx where
Fx: Deref,
<Fx as Deref>::Target: Entropy,
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Fx: Deref,
<Fx as Deref>::Target: Entropy,
impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<Fx> Kurtosis for Fx where
Fx: Deref,
<Fx as Deref>::Target: Kurtosis,
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Fx: Deref,
<Fx as Deref>::Target: Kurtosis,
impl<Fx, X> Mean<X> for Fx where
Fx: Deref,
<Fx as Deref>::Target: Mean<X>,
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Fx: Deref,
<Fx as Deref>::Target: Mean<X>,
impl<Fx, X> Median<X> for Fx where
Fx: Deref,
<Fx as Deref>::Target: Median<X>,
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Fx: Deref,
<Fx as Deref>::Target: Median<X>,
impl<Fx, X> Mode<X> for Fx where
Fx: Deref,
<Fx as Deref>::Target: Mode<X>,
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Fx: Deref,
<Fx as Deref>::Target: Mode<X>,
impl<Fx, X> Rv<X> for Fx where
Fx: Deref,
<Fx as Deref>::Target: Rv<X>,
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Fx: Deref,
<Fx as Deref>::Target: Rv<X>,
fn ln_f(&Self, &X) -> f64
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fn f(&Self, &X) -> f64
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fn draw<R>(&Self, &mut R) -> X where
R: Rng,
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R: Rng,
fn sample<R>(&Self, usize, &mut R) -> Vec<X> where
R: Rng,
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R: Rng,
fn sample_stream<'r, R: Rng>(
&'r self,
rng: &'r mut R
) -> Box<dyn Iterator<Item = X> + 'r>
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&'r self,
rng: &'r mut R
) -> Box<dyn Iterator<Item = X> + 'r>
impl<T> Same<T> for T
type Output = T
Should always be Self
impl<Fx> Skewness for Fx where
Fx: Deref,
<Fx as Deref>::Target: Skewness,
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Fx: Deref,
<Fx as Deref>::Target: Skewness,
impl<SS, SP> SupersetOf<SS> for SP where
SS: SubsetOf<SP>,
SS: SubsetOf<SP>,
fn to_subset(&self) -> Option<SS>
fn is_in_subset(&self) -> bool
unsafe fn to_subset_unchecked(&self) -> SS
fn from_subset(element: &SS) -> SP
impl<Fx, X> Support<X> for Fx where
Fx: Deref,
<Fx as Deref>::Target: Support<X>,
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Fx: Deref,
<Fx as Deref>::Target: Support<X>,
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> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
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<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,
fn vzip(self) -> V
impl<Fx, X> Variance<X> for Fx where
Fx: Deref,
<Fx as Deref>::Target: Variance<X>,
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Fx: Deref,
<Fx as Deref>::Target: Variance<X>,