Struct SparseMatrix 

pub struct SparseMatrix<T> {
    pub format: SparseFormat,
    pub rows: usize,
    pub cols: usize,
    pub nnz: usize,
    pub values: Vec<T>,
    pub row_indices: Vec<usize>,
    pub col_indices: Vec<usize>,
    pub block_size: Option<(usize, usize)>,
}

Sparse matrix structure

Fields

format: SparseFormat

Storage format

rows: usize

Number of rows

cols: usize

Number of columns

nnz: usize

Number of non-zero elements

values: Vec<T>

Values of non-zero elements

row_indices: Vec<usize>

Row indices (format-dependent meaning)

col_indices: Vec<usize>

Column indices (format-dependent meaning)

block_size: Option<(usize, usize)>

Block size for BSR format

Implementations

impl<T: Clone + Default + PartialEq> SparseMatrix<T>

pub fn new_coo(rows: usize, cols: usize) -> Self

Create a new sparse matrix in COO format

pub fn new_csr(rows: usize, cols: usize) -> Self

Create a new sparse matrix in CSR format

pub fn new_csc(rows: usize, cols: usize) -> Self

Create a new sparse matrix in CSC format

pub fn insert_coo( &mut self, row: usize, col: usize, value: T, ) -> BackendResult<()>

Insert a value at (row, col) for COO format

pub fn to_csr(&self) -> BackendResult<SparseMatrix<T>>

Convert COO to CSR format

pub fn to_csc(&self) -> BackendResult<SparseMatrix<T>>

Convert COO to CSC format

pub fn sparsity_ratio(&self) -> f64

Get sparsity ratio (percentage of non-zero elements)

pub fn is_sparse(&self) -> bool

Check if the matrix is effectively sparse (< 50% non-zero)

impl<T: Clone + Default + PartialEq> SparseMatrix<T>

pub fn to_bsr( &self, block_size: (usize, usize), ) -> BackendResult<SparseMatrix<T>>

Create BSR (Block Sparse Row) matrix from COO

pub fn optimize(&mut self) -> BackendResult<()>

Optimize matrix structure by removing explicit zeros and sorting

pub fn statistics(&self) -> SparseMatrixStatistics

Get matrix statistics for performance analysis

Trait Implementations

impl<T: Clone> Clone for SparseMatrix<T>

fn clone(&self) -> SparseMatrix<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for SparseMatrix<T>

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

Formats the value using the given formatter.

impl<T> Default for SparseMatrix<T>

fn default() -> Self

Returns the “default value” for a type.