Struct COOStorage 

pub struct COOStorage {
    pub row_indices: Vec<IndexType>,
    pub col_indices: Vec<IndexType>,
    pub values: Vec<Precision>,
}

Coordinate (COO) storage format.

Efficient for construction and random access patterns.

Fields

row_indices: Vec<IndexType>

Row indices

col_indices: Vec<IndexType>

Column indices

values: Vec<Precision>

Values

Implementations

impl COOStorage

pub fn from_triplets(triplets: Vec<(usize, usize, Precision)>) -> Result<Self>

Create COO storage from triplets.

pub fn is_empty(&self) -> bool

Check if the storage is empty.

pub fn get(&self, row: usize, col: usize) -> Option<Precision>

Get matrix element at (row, col) - O(n) search.

pub fn row_iter(&self, row: usize) -> COORowIter<'_>

Iterate over non-zero elements in a row.

pub fn col_iter(&self, col: usize) -> COOColIter<'_>

Iterate over non-zero elements in a column.

pub fn multiply_vector(&self, x: &[Precision], result: &mut [Precision])

Matrix-vector multiplication: result = A * x

pub fn multiply_vector_add(&self, x: &[Precision], result: &mut [Precision])

Matrix-vector multiplication with accumulation: result += A * x

pub fn nnz(&self) -> usize

Get number of non-zero elements.

pub fn to_triplets(&self) -> Vec<(usize, usize, Precision)>

Extract as coordinate triplets.

pub fn scale(&mut self, factor: Precision)

Scale all values by a factor.

pub fn add_diagonal(&mut self, alpha: Precision, rows: DimensionType)

Add a value to the diagonal.

Trait Implementations

impl Clone for COOStorage

fn clone(&self) -> COOStorage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for COOStorage

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for COOStorage

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for COOStorage

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

where __S: Serializer,

Serialize this value into the given Serde serializer.