Struct PersistencePoint 

pub struct PersistencePoint {
    pub birth: f64,
    pub death: f64,
    pub dimension: usize,
}

A single persistence point (birth, death) pair in a persistence diagram. The dimension indicates which homological dimension this feature belongs to.

Fields

birth: f64

Birth time (filtration value at which the feature appears)

death: f64

Death time (filtration value at which the feature disappears), or f64::INFINITY for essential features

dimension: usize

Homological dimension (0 = components, 1 = loops, 2 = voids, …)

Implementations

impl PersistencePoint

pub fn new(birth: f64, death: f64, dimension: usize) -> Self

Create a new persistence point

pub fn persistence(&self) -> f64

Compute the persistence (lifetime) of this feature

pub fn is_essential(&self) -> bool

Check if this is an essential feature (never dies)

Trait Implementations

impl Clone for PersistencePoint

fn clone(&self) -> PersistencePoint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PersistencePoint

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

Formats the value using the given formatter.

impl Display for PersistencePoint

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

Formats the value using the given formatter.

impl PartialEq for PersistencePoint

fn eq(&self, other: &PersistencePoint) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for PersistencePoint