Struct OnlineStats 

pub struct OnlineStats { /* private fields */ }

Online (streaming) mean and variance using Welford’s algorithm.

Implementations

impl OnlineStats

pub fn new() -> Self

Create a new empty statistics accumulator.

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

Update with a new data point.

pub fn mean(&self) -> f64

Current mean.

pub fn variance(&self) -> f64

Population variance.

pub fn sample_variance(&self) -> f64

Sample variance.

pub fn std_dev(&self) -> f64

Standard deviation.

pub fn count(&self) -> usize

Number of samples.

pub fn merge(&mut self, other: &OnlineStats)

Merge another accumulator into this one.

Trait Implementations

impl Clone for OnlineStats

fn clone(&self) -> OnlineStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OnlineStats

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

Formats the value using the given formatter.

impl Default for OnlineStats

fn default() -> OnlineStats

Returns the “default value” for a type.