Struct Cmo 

pub struct Cmo { /* private fields */ }

Chande Momentum Oscillator — Tushar Chande’s bounded momentum gauge.

Over the last period price changes it sums the gains and the losses separately and reports:

CMO = 100 · (Σ gains − Σ losses) / (Σ gains + Σ losses)

The result is bounded in [−100, 100]: +100 is a window of pure gains, −100 a window of pure losses, 0 a perfect balance. Unlike RSI the sums are unsmoothed — every change in the window carries equal weight — so CMO reacts faster and swings wider.

Example

use wickra_core::{Indicator, Cmo};

let mut indicator = Cmo::new(14).unwrap();
let mut last = None;
for i in 0..80 {
    last = indicator.update(100.0 + f64::from(i));
}
assert_eq!(last, Some(100.0)); // pure uptrend saturates at +100

Implementations

impl Cmo

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

Construct a new CMO with the given period.

Errors

Returns Error::PeriodZero if period == 0.

pub const fn period(&self) -> usize

Configured period.

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

Current value if available.

Trait Implementations

impl Clone for Cmo

fn clone(&self) -> Cmo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Cmo

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

Formats the value using the given formatter.

impl Indicator for Cmo

type Input = f64

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

type Output = f64

Type of one output value.

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

Feed one new data point into the indicator and return the freshly computed output, or None if the indicator is still warming up.

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.