Struct MacdFix 

pub struct MacdFix { /* private fields */ }

MACD Fix (MACDFIX): the classic MACD with the fast and slow EMAs fixed at 12 and 26, leaving only the signal period configurable.

This is TA-Lib’s MACDFIX: the 12- and 26-bar EMAs smooth with Gerald Appel’s rounded constants 0.15 and 0.075 instead of 2 / 13 and 2 / 27 (both still seeded with their simple means), so it differs slightly from MacdIndicator::new(12, 26, signal). The signal line is an ordinary signal-period EMA of the MACD line. The output is the usual MacdOutput triple { macd, signal, histogram }.

fast = EMA(close; seed SMA(12), α = 0.15)
slow = EMA(close; seed SMA(26), α = 0.075)
macd = fast − slow,  signal = EMA(macd, signal),  histogram = macd − signal

Example

use wickra_core::{Indicator, MacdFix};

let mut indicator = MacdFix::new(9).unwrap();
let mut last = None;
for i in 0..80 {
    last = indicator.update(100.0 + f64::from(i));
}
assert!(last.is_some());

Implementations

impl MacdFix

pub fn new(signal: usize) -> Result<Self>

Construct a MACDFIX with fast = 12, slow = 26 and the given signal period.

Errors

Returns Error::PeriodZero if signal == 0.

pub fn signal_period(&self) -> usize

Configured signal period.

pub fn batch_macd_into(&mut self, inputs: &[f64], out: &mut [f64])

Exact flat batch, [macd, signal, histogram] per input row, warmup rows NaN — the fused path of MacdIndicator::batch_macd_into.

Panics

Panics if out.len() != inputs.len() * 3.

pub fn batch_macd(&mut self, inputs: &[f64]) -> Vec<f64>

batch_macd_into into a fresh vector.

pub fn batch_macd_fast_into(&mut self, inputs: &[f64], out: &mut [f64])

The opt-in SIMD batch of MacdIndicator::batch_macd_fast_into.

Panics

Panics if out.len() != inputs.len() * 3.

pub fn batch_macd_fast(&mut self, inputs: &[f64]) -> Vec<f64>

batch_macd_fast_into into a fresh vector.

Trait Implementations

impl Clone for MacdFix

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MacdFix

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

Formats the value using the given formatter.

impl Indicator for MacdFix

type Input = f64

Type of one input data point (typically f64 for a price, or Candle / Tick).

type Output = MacdOutput

Type of one output value.

fn update(&mut self, value: f64) -> Option<MacdOutput>

Feed one new data point into the indicator and return the freshly computed output, or None if there is no value for this input.

fn reset(&mut self)

Reset all internal state, leaving the indicator equivalent to a freshly constructed instance with the same parameters.

fn warmup_period(&self) -> usize

Number of inputs required before the first non-None output can be produced.

fn is_ready(&self) -> bool

Whether the indicator has emitted at least one value since the last reset.

fn name(&self) -> &'static str

Stable, human-readable indicator name. Used by chaining and diagnostics.