Struct CooMatrix 

pub struct CooMatrix<S> {
    pub nrows: usize,
    pub ncols: usize,
    pub rows: Vec<usize>,
    pub cols: Vec<usize>,
    pub vals: Vec<S>,
}

Coordinate (triplet) format for assembling sparse matrices.

Good for incremental construction, then convert to CSR for computation.

Fields

nrows: usize

ncols: usize

rows: Vec<usize>

cols: Vec<usize>

vals: Vec<S>

Implementations

impl<S: Scalar> CooMatrix<S>

pub fn new(nrows: usize, ncols: usize) -> Self

pub fn with_capacity(nrows: usize, ncols: usize, nnz: usize) -> Self

pub fn push(&mut self, row: usize, col: usize, val: S)

Add a triplet (row, col, value). Duplicates are summed during conversion.

pub fn nnz(&self) -> usize

pub fn to_csr(&self) -> CsrMatrix<S>

Convert to CSR format (summing duplicate entries).