Struct CsrMatrix 

pub struct CsrMatrix<T: Real = f64> {
    pub n_cols: usize,
    pub row_ptr: Vec<usize>,
    pub col_idx: Vec<u32>,
    pub val: Vec<T>,
}

Sparse matrix in compressed sparse row (CSR) format.

Fields

n_cols: usize

Number of columns n.

row_ptr: Vec<usize>

Row pointers, length m + 1; row i occupies row_ptr[i]..row_ptr[i + 1].

col_idx: Vec<u32>

Column index of each stored entry, strictly increasing within a row.

val: Vec<T>

Value of each stored entry; finite and nonzero.

Implementations

impl<T: Real> CsrMatrix<T>

pub fn from_raw_parts( n_cols: usize, row_ptr: Vec<usize>, col_idx: Vec<u32>, val: Vec<T>, ) -> Result<Self, SparseError>

Builds a matrix from raw compressed arrays, validating every invariant.

pub fn n_rows(&self) -> usize

Number of rows m.

pub fn n_cols(&self) -> usize

Number of columns n.

pub fn nnz(&self) -> usize

Number of stored entries.

pub fn row(&self, i: Row) -> (&[u32], &[T])

Column indices and values of row i.

pub fn get(&self, i: Row, j: Col) -> T

Entry a_ij, or 0 if not stored; O(log nnz(row i)).

pub fn to_csc(&self) -> CscMatrix<T>

The same matrix in column-wise (CSC) storage, by Algorithm T.

pub fn check_invariants(&self) -> Result<(), SparseError>

Checks invariants (C1)–(C4).

Trait Implementations

impl<T: Clone + Real> Clone for CsrMatrix<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug + Real> Debug for CsrMatrix<T>

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

Formats the value using the given formatter.

impl<T: PartialEq + Real> PartialEq for CsrMatrix<T>

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl<T: PartialEq + Real> StructuralPartialEq for CsrMatrix<T>