Struct PersistenceDiagram 

pub struct PersistenceDiagram {
    pub pairs: Vec<PersistentInterval>,
}

A persistence diagram: a collection of birth-death pairs.

Each pair represents a topological feature that appears at birth and disappears at death in a filtration.

Fields

pairs: Vec<PersistentInterval>

The birth-death pairs (birth, death, dimension).

Implementations

impl PersistenceDiagram

pub fn new() -> Self

Create an empty PersistenceDiagram.

pub fn add(&mut self, birth: f64, death: f64, dimension: usize)

Add a birth-death pair to the diagram.

pub fn from_vietoris_rips_h0(vr: &VietorisRips) -> Self

Build a persistence diagram from the 0-dimensional VR filtration.

pub fn pairs_in_dim(&self, dim: usize) -> Vec<&PersistentInterval>

Filter pairs by homological dimension.

pub fn max_persistence(&self) -> f64

Maximum persistence (lifetime) over all finite pairs.

pub fn n_essential(&self) -> usize

Number of essential (infinite) bars.

pub fn entropy(&self) -> f64

Persistence entropy of the diagram (in nats).

pub fn total_persistence(&self) -> f64

Total persistence Σ (death − birth) for finite pairs.

Trait Implementations

impl Clone for PersistenceDiagram

fn clone(&self) -> PersistenceDiagram

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PersistenceDiagram

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

Formats the value using the given formatter.

impl Default for PersistenceDiagram

fn default() -> PersistenceDiagram

Returns the “default value” for a type.