Struct TransitionMatrix 

pub struct TransitionMatrix {
    pub data: Vec<f64>,
    pub n: usize,
}

A row-major transition probability matrix for a discrete system.

Entry tpm[i][j] = P(state j at t+1 | state i at t). Rows must sum to 1.0. Stored as a flat Vec for cache locality.

Fields

data: Vec<f64>

Flat row-major storage: data[i * cols + j].

n: usize

Number of states (rows = cols for square TPM).

Implementations

impl TransitionMatrix

pub fn new(n: usize, data: Vec<f64>) -> Self

Create from a flat row-major vec. Panics if data.len() != n * n.

pub fn identity(n: usize) -> Self

Create an identity TPM (each state maps to itself).

pub fn get(&self, row: usize, col: usize) -> f64

Get element at (row, col).

pub unsafe fn get_unchecked(&self, row: usize, col: usize) -> f64

Get element without bounds checking.

Safety

row < self.n && col < self.n must hold.

pub fn set(&mut self, row: usize, col: usize, val: f64)

Set element at (row, col).

pub fn size(&self) -> usize

Number of states.

pub fn as_slice(&self) -> &[f64]

Raw data slice.

pub fn marginalize(&self, indices: &[usize]) -> TransitionMatrix

Extract a sub-TPM for the given element indices (marginalize).

Trait Implementations

impl Clone for TransitionMatrix

fn clone(&self) -> TransitionMatrix

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TransitionMatrix

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TransitionMatrix

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for TransitionMatrix

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.