Struct CsrMatrix 

pub struct CsrMatrix {
    pub row_offsets: Vec<usize>,
    pub col_indices: Vec<usize>,
    pub values: Vec<f64>,
    pub n_rows: usize,
    pub n_cols: usize,
}

Compressed Sparse Row storage for adjacency matrices.

Fields

row_offsets: Vec<usize>

Length n_rows + 1. row_offsets[i]..row_offsets[i+1] indexes into col_indices/values.

col_indices: Vec<usize>

values: Vec<f64>

n_rows: usize

n_cols: usize

Implementations

impl CsrMatrix

pub fn new( row_offsets: Vec<usize>, col_indices: Vec<usize>, values: Vec<f64>, n_rows: usize, n_cols: usize, ) -> Result<Self, String>

pub fn nnz(&self) -> usize

pub fn from_dense( dense: &[f64], n_rows: usize, n_cols: usize, threshold: f64, ) -> Self

Convert dense row-major matrix to CSR, keeping entries with |value| > threshold.

pub fn to_dense(&self) -> Vec<f64>

Expand back to dense row-major layout.

fn row_sum(&self, i: usize) -> f64

Row-sum (degree) for row i.

Trait Implementations

impl Clone for CsrMatrix

fn clone(&self) -> CsrMatrix

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CsrMatrix

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

Formats the value using the given formatter.