Struct Mean 

pub struct Mean { /* private fields */ }

Running mean and variance of real values (Welford).

Implementations

impl Mean

pub fn add(&mut self, x: f64)

Add one value.

pub fn merge(&mut self, o: &Mean)

Merge another accumulator (exact, Chan et al.).

pub fn count(&self) -> u64

Number of values.

pub fn mean(&self) -> f64

Mean (NaN without values).

pub fn variance(&self) -> f64

Unbiased sample variance (NaN with fewer than two values).

pub fn std(&self) -> f64

Sample standard deviation.

pub fn sem(&self) -> f64

Standard error of the mean $s/\sqrt{n}$.

pub fn interval(&self, confidence: f64) -> (f64, f64)

Normal confidence interval of the mean, $\bar{x} \pm z s/\sqrt{n}$ (unbounded with fewer than two values, so that a precision rule never stops on a single value).

Trait Implementations

impl Clone for Mean

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Mean

impl Debug for Mean

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Mean

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for Mean

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Mean