Struct EMA 

pub struct EMA { /* private fields */ }

Exponential Moving Average calculator

Uses the standard EMA formula: EMA_t = price * k + EMA_{t-1} * (1 - k) where k = 2 / (period + 1)

Implementations

impl EMA

pub fn new(period: usize) -> Self

Create a new EMA with the given period

pub fn update(&mut self, price: f64) -> Option<f64>

Update with a new price value, returning the EMA if warmed up

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

Get the current EMA value (None if not yet warmed up)

pub fn is_ready(&self) -> bool

Check if the EMA has enough data to produce valid values

pub fn period(&self) -> usize

Get the period

pub fn reset(&mut self)

Reset the EMA state

Trait Implementations

impl Clone for EMA

fn clone(&self) -> EMA

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EMA

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

Formats the value using the given formatter.