Struct DemaState 

pub struct DemaState { /* private fields */ }

Double exponential moving average: 2·EMA − EMA(EMA).

Reduces lag vs a single EMA of the same period (Mulloy). Warm-up is longer (nested EMA).

Implementations

impl DemaState

pub fn new(period: usize) -> FinanceResult<Self>

pub fn from_history(period: usize, closes: &[f64]) -> FinanceResult<Self>

pub fn period(&self) -> usize

pub fn reset(&mut self)

pub fn push(&mut self, close: f64) -> FinanceResult<Option<f64>>

pub fn push_bars(&mut self, closes: &[f64]) -> FinanceResult<Vec<Option<f64>>>

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

Trait Implementations

impl Clone for DemaState

fn clone(&self) -> DemaState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DemaState

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

Formats the value using the given formatter.