Struct forust_ml::data::Matrix

pub struct Matrix<'a, T> {
    pub data: &'a [T],
    pub index: Vec<usize>,
    pub rows: usize,
    pub cols: usize,
    /* private fields */
}

Contigious Column major matrix data container. This is used throughout the crate, to house both the user provided data as well as the binned data.

Fields

data: &'a [T]

index: Vec<usize>

rows: usize

cols: usize

Implementations

impl<'a, T> Matrix<'a, T>

pub fn new(data: &'a [T], rows: usize, cols: usize) -> Self

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

Get a single reference to an item in the matrix.

• i - The ith row of the data to get.
• j - the jth column of the data to get.

pub fn get_row_iter(&self, row: usize) -> StepBy<Skip<Iter<'_, T>>>

Get access to a row of the data, as an iterator.

pub fn get_col_slice( &self, col: usize, start_row: usize, end_row: usize ) -> &[T]

Get a slice of a column in the matrix.

• col - The index of the column to select.
• start_row - The index of the start of the slice.
• end_row - The index of the end of the slice of the column to select.

pub fn get_col(&self, col: usize) -> &[T]

Get an entire column in the matrix.

• col - The index of the column to get.

impl<'a, T> Matrix<'a, T>where T: Copy,

pub fn get_row(&self, row: usize) -> Vec<T>

Get a row of the data as a vector.

Trait Implementations

impl<'a, T> Display for Matrix<'a, T>where T: FromStr + Display, <T as FromStr>::Err: 'static + Error,

A lightweight row major matrix, this is primarily for returning data to the user, it is especially suited for appending rows to, such as when building up a matrix of contributions to return to the user, the added benefit is it will be even faster to return to numpy.

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

Format a Matrix.