Trait probability::distribution::Variance
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[src]
pub trait Variance: Mean { fn variance(&self) -> f64; fn deviation(&self) -> f64 { ... } fn var(&self) -> f64 { ... } fn sd(&self) -> f64 { ... } }
A distribution capable of computing the variance.
The trait is applicable when the variance exists, that is, finite.
Required Methods
Provided Methods
fn deviation(&self) -> f64
Compute the standard deviation.
fn var(&self) -> f64
Compute the variance.
The function is an alias for variance
.
fn sd(&self) -> f64
Compute the standard deviation.
The function is an alias for deviation
.
Implementors
impl Variance for Bernoulli
impl Variance for Beta
impl Variance for Binomial
impl Variance for Categorical
impl Variance for Exponential
impl Variance for Gaussian
impl Variance for Uniform