[−][src]Struct rv::dist::Pareto
Pareto distribution Pareto(x_m, α) over x in (x_m, ∞).
NOTE: The Pareto distribution is parameterized in terms of shape, α, and scale, x_m.
α x_m^α
f(x|α, x_m) = ---------
x^(α + 1)
Implementations
impl Pareto
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pub fn new(shape: f64, scale: f64) -> Result<Self, ParetoError>
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Create a new Pareto
distribution with shape (α) and scale (x_m).
pub fn new_unchecked(shape: f64, scale: f64) -> Self
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Creates a new Pareto without checking whether the parameters are valid.
pub fn shape(&self) -> f64
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Get shape parameter
Example
let pareto = Pareto::new(1.0, 2.0).unwrap(); assert_eq!(pareto.shape(), 1.0);
pub fn set_shape(&mut self, shape: f64) -> Result<(), ParetoError>
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Set the shape parameter
Example
use rv::dist::Pareto; let mut pareto = Pareto::new(2.0, 1.0).unwrap(); assert_eq!(pareto.shape(), 2.0); pareto.set_shape(1.1).unwrap(); assert_eq!(pareto.shape(), 1.1);
Will error for invalid values
assert!(pareto.set_shape(1.1).is_ok()); assert!(pareto.set_shape(0.0).is_err()); assert!(pareto.set_shape(-1.0).is_err()); assert!(pareto.set_shape(std::f64::INFINITY).is_err()); assert!(pareto.set_shape(std::f64::NEG_INFINITY).is_err()); assert!(pareto.set_shape(std::f64::NAN).is_err());
pub fn set_shape_unchecked(&mut self, shape: f64)
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Set the shape parameter without input validation
pub fn scale(&self) -> f64
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Get scale parameter
Example
let pareto = Pareto::new(1.0, 2.0).unwrap(); assert_eq!(pareto.scale(), 2.0);
pub fn set_scale(&mut self, scale: f64) -> Result<(), ParetoError>
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Set the scale parameter
Example
use rv::dist::Pareto; let mut pareto = Pareto::new(2.0, 1.0).unwrap(); assert_eq!(pareto.scale(), 1.0); pareto.set_scale(1.1).unwrap(); assert_eq!(pareto.scale(), 1.1);
Will error for invalid values
assert!(pareto.set_scale(1.1).is_ok()); assert!(pareto.set_scale(0.0).is_err()); assert!(pareto.set_scale(-1.0).is_err()); assert!(pareto.set_scale(std::f64::INFINITY).is_err()); assert!(pareto.set_scale(std::f64::NEG_INFINITY).is_err()); assert!(pareto.set_scale(std::f64::NAN).is_err());
pub fn set_scale_unchecked(&mut self, scale: f64)
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Set the scale parameter without input validation
Trait Implementations
impl Cdf<f32> for Pareto
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impl Cdf<f64> for Pareto
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impl Clone for Pareto
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impl ContinuousDistr<f32> for Pareto
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impl ContinuousDistr<f64> for Pareto
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impl Debug for Pareto
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impl Display for Pareto
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impl Entropy for Pareto
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impl<'_> From<&'_ Pareto> for String
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impl Kurtosis for Pareto
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impl Mean<f32> for Pareto
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impl Mean<f64> for Pareto
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impl Mode<f32> for Pareto
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impl Mode<f64> for Pareto
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impl PartialEq<Pareto> for Pareto
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impl Rv<f32> for Pareto
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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 Pareto
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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 Pareto
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impl StructuralPartialEq for Pareto
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impl Support<f32> for Pareto
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impl Support<f64> for Pareto
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impl Variance<f64> for Pareto
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Auto Trait Implementations
impl RefUnwindSafe for Pareto
impl Send for Pareto
impl Sync for Pareto
impl Unpin for Pareto
impl UnwindSafe for Pareto
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> 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>,