Struct IncrementalSum 

pub struct IncrementalSum { /* private fields */ }

Incremental sum accumulator - O(1) updates instead of O(n) recomputation

Implementations

impl IncrementalSum

pub fn new() -> Self

Create a new incremental sum accumulator.

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

Add a value to the accumulator.

pub fn remove(&mut self, value: f64)

Remove a value from the accumulator.

pub const fn sum(&self) -> f64

Current sum value.

pub const fn count(&self) -> usize

Number of values added.

pub fn avg(&self) -> Option<f64>

Current average, or None if empty.

pub const fn reset(&mut self)

Reset the accumulator to zero.

Trait Implementations

impl Clone for IncrementalSum

fn clone(&self) -> IncrementalSum

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IncrementalSum

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

Formats the value using the given formatter.

impl Default for IncrementalSum

fn default() -> IncrementalSum

Returns the “default value” for a type.