[−][src]Trait agnes::stats::Variance

pub trait Variance {
    fn var(&self) -> f64;

    fn varp(&self) -> f64;

    fn stdev(&self) -> f64 { ... }

    fn stdevp(&self) -> f64 { ... }
}

A trait for computing the variance and standard deviation of values in a field.

Required methods

fn var(&self) -> f64

Computes sample variance of this field. Ignores missing values in this computation. If all values are missing, returns 0.0.

fn varp(&self) -> f64

Computes population variance of this field. Ignores missing values in this computation. If all values are missing, returns 0.0.

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Provided methods

fn stdev(&self) -> f64

Computes sample standard deviation of this field. Ignores missing values in this computation. If all values are missing, returns 0.0.

fn stdevp(&self) -> f64

Computes population standard deviation of this field. Ignores missing values in this computation. If all values are missing, returns 0.0.

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Implementors

impl<DI> Variance for DI where
    DI: DataIndex + SumSq + NaCount + Mean,
    <DI as SumSq>::Output: AsPrimitive<f64>, [src]

fn stdev(&self) -> f64[src]

fn stdevp(&self) -> f64[src]

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