Struct RunningStats 

pub struct RunningStats { /* private fields */ }

Welford’s online mean/variance accumulator: numerically stable for long streams and mergeable across partial results.

Implementations

impl RunningStats

pub fn new() -> Self

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

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

Merge another accumulator (parallel reduction).

pub fn count(&self) -> usize

pub fn mean(&self) -> f64

pub fn variance(&self) -> f64

Population variance (divide by n, matching mean_std_err).

pub fn std_err(&self) -> f64

pub fn stats(&self) -> SimStats

Trait Implementations

impl Clone for RunningStats

fn clone(&self) -> RunningStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RunningStats

impl Debug for RunningStats

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

Formats the value using the given formatter.

impl Default for RunningStats

fn default() -> RunningStats

Returns the “default value” for a type.