Struct dbscan::matrix::SymmetricMatrix

pub struct SymmetricMatrix<T> { /* fields omitted */ }

A generic symmetric matrix.

Methods

impl<T> SymmetricMatrix<T> where T: Default + Copy

fn new(size: usize) -> Self

Constructs a new symmetric matrix with the given number of rows and columns.

Each cell in the matrix is initialied to T::default(). For example, when T is an integral type, each cell is initialied to 0.

Examples

let m: SymmetricMatrix<i32> = SymmetricMatrix::new(5);

fn size(&self) -> usize

Returns the number of rows and columns of the matrix.

Examples

let m: SymmetricMatrix<i32> = SymmetricMatrix::new(5);
assert_eq!(m.size(), 5);

fn get(&self, row: usize, col: usize) -> T

Returns the value of the given cell.

Since the matrix is symmetric, get(x, y) returns the same value as get(y, x).

Examples

let m = SymmetricMatrix::new(5);
m.set(1, 2, 42);
assert_eq!(m.get(1, 2), 42);
assert_eq!(m.get(2, 1), 42);

Panics

When the given cell does not exist. For example, when the size of the matrix is 5, calling get(5, 1) will panic.

fn set(&mut self, row: usize, col: usize, value: T)

Sets the value of the given cell.

Since the matrix is symmetric, set(x, y, value) automatically sets the value of (y, x).

Examples

let m = SymmetricMatrix::new(5);
m.set(1, 2, 42);
assert_eq!(m.get(1, 2), 42);
assert_eq!(m.get(2, 1), 42);

Panics

When the given cell does not exist. For example, when the size of the matrix is 5, calling set(5, 1, X) will panic.

Trait Implementations

impl<T: Debug> Debug for SymmetricMatrix<T>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.