[−][src]Trait mathru::statistics::distrib::Continuous
Continuous distribution
Required methods
fn pdf<'a, 'b>(&'a self, x: A) -> f64
fn cdf<'a, 'b>(&'a self, x: B) -> f64
fn quantile<'a, 'b>(&'a self, p: B) -> f64
Quantile function, inverse cdf
fn mean<'a>(&'a self) -> f64
Mean
fn variance<'a>(&'a self) -> f64
Variance
Implementors
impl Continuous<f64, f64> for Normal
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fn pdf<'a, 'b>(&'a self, x: f64) -> f64
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Probability density function
Arguments
x
: Random variable x ∈ ℕ
Example
use mathru::statistics::distrib::{Continuous, Normal}; let distrib: Normal = Normal::new(0.3, 0.2); let x: f64 = 5.0; let p: f64 = distrib.pdf(x);
fn cdf<'a, 'b>(&'a self, x: f64) -> f64
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Cumulative distribution function
Arguments
x
: Random variable
Example
use mathru::statistics::distrib::{Continuous, Normal}; let distrib: Normal = Normal::new(0.3, 0.2); let x: f64 = 0.4; let p: f64 = distrib.cdf(x);
fn quantile<'a>(&'a self, p: f64) -> f64
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Quantile: function of inverse cdf
The Percentage Points of the Normal Distribution Author(s): Michael J. Wichura Year 1988 Journal of the Royal Statistical Society 0.0 < p < 1.0
Panics
if p <= 0.0 || p >= 1.0
fn mean<'a>(&'a self) -> f64
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Expected value
Example
use mathru; use mathru::statistics::distrib::{Continuous, Normal}; let distrib: Normal = Normal::new(0.0, 0.2); let mean: f64 = distrib.mean();
fn variance<'a>(&'a self) -> f64
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Variance
Example
use mathru; use mathru::statistics::distrib::{Continuous, Normal}; let distrib: Normal = Normal::new(0.0, 0.2); let var: f64 = distrib.variance();
impl Continuous<f64, f64> for Exponential
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fn pdf<'a>(&'a self, x: f64) -> f64
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Probability density function
Arguments
x
Random variable x ∈ ℕ | x > 0.0
Example
use mathru::statistics::distrib::{Continuous, Exponential}; let distrib: Exponential = Exponential::new(&0.3); let x: f64 = 5.0; let p: f64 = distrib.pdf(x);
fn cdf<'a>(&'a self, x: f64) -> f64
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Cumulative distribution function
Arguments
x
Random variable
Example
use mathru::statistics::distrib::{Continuous, Exponential}; let distrib: Exponential = Exponential::new(&0.3); let x: f64 = 0.4; let p: f64 = distrib.cdf(x);
fn quantile<'a>(&'a self, p: f64) -> f64
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Quantile function of inverse cdf
fn mean<'a>(&'a self) -> f64
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Expected value
Example
use mathru::statistics::distrib::{Discrete, Bernoulli}; let distrib: Bernoulli = Bernoulli::new(0.2); let mean: f64 = distrib.mean();
fn variance<'a>(&'a self) -> f64
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Variance
Example
use mathru::statistics::distrib::{Discrete, Bernoulli}; let distrib: Bernoulli = Bernoulli::new(0.2); let var: f64 = distrib.variance();
impl Continuous<f64, f64> for ChiSquared
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fn pdf<'a>(&'a self, x: f64) -> f64
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Probability density function
Arguments
x
Random variable x ∈ ℕ
Example
use mathru::statistics::distrib::{Continuous, ChiSquared}; let distrib: ChiSquared = ChiSquared::new(&2); let x: f64 = 5.0; let p: f64 = distrib.pdf(x);
fn cdf<'a>(&'a self, x: f64) -> f64
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Cumulative distribution function
Arguments
x
Random variable
Example
use mathru::statistics::distrib::{Continuous, ChiSquared}; let distrib: ChiSquared = ChiSquared::new(&3); let x: f64 = 0.4; let p: f64 = distrib.cdf(x);
fn quantile<'a, 'b>(&'a self, p: f64) -> f64
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Quantile function of inverse cdf
fn mean<'a>(&'a self) -> f64
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Expected value
Example
use mathru::statistics::distrib::{Discrete, Bernoulli}; let distrib: Bernoulli = Bernoulli::new(0.2); let mean: f64 = distrib.mean();
fn variance<'a>(&'a self) -> f64
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Variance
Example
use mathru::statistics::distrib::{Discrete, Bernoulli}; let distrib: Bernoulli = Bernoulli::new(0.2); let var: f64 = distrib.variance();
impl Continuous<f64, f64> for Beta
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fn pdf<'a>(&'a self, x: f64) -> f64
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Probability density function
Arguments
x
Random variable x &isin ࡃ
Example
use mathru::statistics::distrib::{Continuous, Beta}; let distrib: Beta = Beta::new(&0.2, &0.3); let x: f64 = 0.5; let p: f64 = distrib.pdf(x);
fn cdf<'a>(&'a self, x: f64) -> f64
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Cumulative distribution function
Arguments
x
Random variable
Example
use mathru::statistics::distrib::{Continuous, Beta}; let distrib: Beta = Beta::new(&0.3, &0.2); let x: f64 = 0.4; let p: f64 = distrib.cdf(x);
fn quantile<'a, 'b>(&'a self, _p: f64) -> f64
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Quantile function of inverse cdf
fn mean<'a>(&'a self) -> f64
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Expected value
Example
use mathru::statistics::distrib::{Continuous, Beta}; let distrib: Beta = Beta::new(&0.2, &0.3); let mean: f64 = distrib.mean();
fn variance<'a>(&'a self) -> f64
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Variance
Example
use mathru::statistics::distrib::{Continuous, Beta}; let distrib: Beta = Beta::new(&0.2, &0.3); let var: f64 = distrib.variance();
impl Continuous<f64, f64> for Gamma
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fn pdf<'a>(&'a self, x: f64) -> f64
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Probability density function
Arguments
x
Random variable x ∈ ℕ | x > 0.0
Panics
if x <= 0.0
Example
use mathru::statistics::distrib::{Continuous, Gamma}; let distrib: Gamma = Gamma::new(0.3, 0.2); let x: f64 = 5.0; let p: f64 = distrib.pdf(x);
fn cdf<'a>(&'a self, x: f64) -> f64
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Cumulative distribution function
Arguments
x
Random variable
Example
use mathru::statistics::distrib::{Continuous, Gamma}; let distrib: Gamma = Gamma::new(0.3, 0.2); let x: f64 = 0.4; let p: f64 = distrib.cdf(x);
fn quantile<'a, 'b>(&'a self, _p: f64) -> f64
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Quantile function of inverse cdf
fn mean<'a>(&'a self) -> f64
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Expected value
fn variance<'a>(&'a self) -> f64
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Variance
Example
use mathru::statistics::distrib::{Continuous, Gamma}; let distrib: Gamma = Gamma::new(0.2, 0.5); let var: f64 = distrib.variance();
impl Continuous<f64, f64> for T
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fn pdf<'a>(&'a self, x: f64) -> f64
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Probability density function
Arguments
x
Random variable x &isin ࡃ
Example
use mathru::statistics::distrib::{Continuous, T}; let distrib: T = T::new(1.2); let x: f64 = 0.5; let p: f64 = distrib.pdf(x);
fn cdf<'a>(&'a self, x: f64) -> f64
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Cumulative distribution function
Arguments
x
Random variable
Example
use mathru::statistics::distrib::{Continuous, T}; let distrib: T = T::new(1.3); let x: f64 = 0.4; let p: f64 = distrib.cdf(x);
fn quantile<'a, 'b>(&'a self, _p: f64) -> f64
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Quantile function of inverse cdf
fn mean<'a>(&'a self) -> f64
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Expected value
Panics
if self.n <= 1.0
Example
use mathru::statistics::distrib::{Continuous, T}; let distrib: T = T::new(1.2); let mean: f64 = distrib.mean();
fn variance<'a>(&'a self) -> f64
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Variance
Example
use mathru::statistics::distrib::{Continuous, T}; let distrib: T = T::new(2.2); let var: f64 = distrib.variance();
impl Continuous<f64, f64> for RaisedCosine
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fn pdf(&self, x: f64) -> f64
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Probability density function
Arguments
x
Random variable x
Panics
Example
use mathru::statistics::distrib::{Continuous, RaisedCosine}; let distrib: RaisedCosine = RaisedCosine::new(-1.2, 1.5); let x: f64 = 5.0; let p: f64 = distrib.pdf(x);
fn cdf(&self, x: f64) -> f64
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Cumulative distribution function
Arguments
Example
use mathru::statistics::distrib::{Continuous, RaisedCosine}; use std::f64::consts::PI; let distrib: RaisedCosine = RaisedCosine::new(1.0, PI); let x: f64 = PI/2.0; let p: f64 = distrib.cdf(x);
fn quantile<'a, 'b>(&'a self, _p: f64) -> f64
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Quantile function of inverse cdf
fn mean<'a>(&'a self) -> f64
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Expected value
Example
use mathru::statistics::distrib::{Continuous, RaisedCosine}; let distrib: RaisedCosine = RaisedCosine::new(-2.0, 0.5); let mean: f64 = distrib.mean();
fn variance(&self) -> f64
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Variance
Example
use mathru::statistics::distrib::{Continuous, RaisedCosine}; use std::f64::consts::PI; let distrib: RaisedCosine = RaisedCosine::new(2.0, PI); let var: f64 = distrib.variance();
impl Continuous<f64, f64> for Uniform
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fn pdf<'a>(&'a self, x: f64) -> f64
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Probability density function
Arguments
x: random variable
Example
use mathru::statistics::distrib::{Continuous, Uniform}; let distrib: Uniform = Uniform::new(-0.1, 0.3); let x: f64 = 5.0; let p: f64 = distrib.pdf(x);
fn cdf<'a>(&'a self, x: f64) -> f64
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Cumulative distribution function
Arguments
x
Random variable
Example
use mathru::statistics::distrib::{Continuous, Uniform}; let distrib: Uniform = Uniform::new(0.0, 0.5); let x: f64 = 0.3; let p: f64 = distrib.cdf(x);
fn quantile<'a, 'b>(&'a self, _p: f64) -> f64
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Quantile function of inverse cdf
fn mean<'a>(&'a self) -> f64
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fn variance<'a>(&'a self) -> f64
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Variance
Example
use mathru::statistics::distrib::{Continuous, Uniform}; let distrib: Uniform = Uniform::new(0.2, 0.5); let var: f64 = distrib.variance();