Struct NormalizedVolume 

pub struct NormalizedVolume { /* private fields */ }

Normalized Volume — divides the current bar’s volume by the SMA of volume over the last period bars.

A value of 1.0 means volume equals its average. Values above 1.0 indicate above-average volume; values below 1.0 indicate below-average volume.

Returns SignalValue::Unavailable until period bars have been seen, or when the average volume is zero (e.g. all bars have zero volume).

Example

use fin_primitives::signals::indicators::NormalizedVolume;
use fin_primitives::signals::Signal;
let nv = NormalizedVolume::new("nvol_20", 20).unwrap();
assert_eq!(nv.period(), 20);

Implementations

impl NormalizedVolume

pub fn new(name: impl Into<String>, period: usize) -> Result<Self, FinError>

Constructs a new NormalizedVolume.

Errors

Returns FinError::InvalidPeriod if period == 0.

Trait Implementations

impl Signal for NormalizedVolume

fn name(&self) -> &str

Returns the name of this signal (unique within a pipeline).

fn period(&self) -> usize

Returns the number of bars required before the signal produces a value.

fn is_ready(&self) -> bool

Returns true if the signal has accumulated enough bars to produce a value.

fn update(&mut self, bar: &BarInput) -> Result<SignalValue, FinError>

Updates the signal with a BarInput and returns the current value.

fn reset(&mut self)

Resets the signal to its initial state as if no bars had been seen.

fn update_bar(&mut self, bar: &OhlcvBar) -> Result<SignalValue, FinError>

Convenience wrapper: converts bar to BarInput and calls Self::update.

fn warm_up(&mut self, bars: &[BarInput]) -> Result<SignalValue, FinError>

Feed a slice of historical bars to prime the indicator in one call.