Struct IncrementalMacd 

pub struct IncrementalMacd { /* private fields */ }

Incremental MACD — O(1) per-tick MACD line, signal, and histogram.

Mirrors the batch macd: a fast and slow IncrementalEma give the MACD line (fast - slow), a third EMA over that line is the signal, and the histogram is macd - signal. The EMAs seed from the first sample (matching the batch’s adjust=false / first-value seeding via ema_nan_aware), so values are emitted from the first tick rather than after a NaN warm-up.

Implementations

impl IncrementalMacd

pub fn new(fast_period: usize, slow_period: usize, signal_period: usize) -> Self

Create an incremental MACD from the fast, slow, and signal periods.

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

Feed the next price; returns (macd, signal, histogram). Always Some — every EMA seeds from the first price — but Option-shaped to match the warm-up contract shared by all incremental structs.

Trait Implementations

impl Clone for IncrementalMacd

fn clone(&self) -> IncrementalMacd

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IncrementalMacd

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

Formats the value using the given formatter.