Struct deltalake::arrow::ipc::gen::SparseTensor::SparseMatrixIndexCSX

pub struct SparseMatrixIndexCSX<'a> {
    pub _tab: Table<'a>,
}

Compressed Sparse format, that is matrix-specific.

Fields

_tab: Table<'a>

Implementations

impl<'a> SparseMatrixIndexCSX<'a>

pub const VT_COMPRESSEDAXIS: u16 = 4u16

pub const VT_INDPTRTYPE: u16 = 6u16

pub const VT_INDPTRBUFFER: u16 = 8u16

pub const VT_INDICESTYPE: u16 = 10u16

pub const VT_INDICESBUFFER: u16 = 12u16

pub unsafe fn init_from_table(table: Table<'a>) -> SparseMatrixIndexCSX<'a>

pub fn create<'bldr, 'args, 'mut_bldr>( _fbb: &'mut_bldr mut FlatBufferBuilder<'bldr>, args: &'args SparseMatrixIndexCSXArgs<'args> ) -> WIPOffset<SparseMatrixIndexCSX<'bldr>>

where 'bldr: 'args, 'args: 'mut_bldr,

pub fn compressedAxis(&self) -> SparseMatrixCompressedAxis

Which axis, row or column, is compressed

pub fn indptrType(&self) -> Int<'a>

The type of values in indptrBuffer

pub fn indptrBuffer(&self) -> &'a Buffer

indptrBuffer stores the location and size of indptr array that represents the range of the rows. The i-th row spans from indptr[i] to indptr[i+1] in the data. The length of this array is 1 + (the number of rows), and the type of index value is long.

For example, let X be the following 6x4 matrix:

  X := [[0, 1, 2, 0],
        [0, 0, 3, 0],
        [0, 4, 0, 5],
        [0, 0, 0, 0],
        [6, 0, 7, 8],
        [0, 9, 0, 0]].

The array of non-zero values in X is:

  values(X) = [1, 2, 3, 4, 5, 6, 7, 8, 9].

And the indptr of X is:

  indptr(X) = [0, 2, 3, 5, 5, 8, 10].

pub fn indicesType(&self) -> Int<'a>

The type of values in indicesBuffer

pub fn indicesBuffer(&self) -> &'a Buffer

indicesBuffer stores the location and size of the array that contains the column indices of the corresponding non-zero values. The type of index value is long.

For example, the indices of the above X is:

  indices(X) = [1, 2, 2, 1, 3, 0, 2, 3, 1].

Note that the indices are sorted in lexicographical order for each row.

Trait Implementations

impl<'a> Clone for SparseMatrixIndexCSX<'a>

fn clone(&self) -> SparseMatrixIndexCSX<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SparseMatrixIndexCSX<'_>

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

Formats the value using the given formatter.

impl<'a> Follow<'a> for SparseMatrixIndexCSX<'a>

type Inner = SparseMatrixIndexCSX<'a>

unsafe fn follow( buf: &'a [u8], loc: usize ) -> <SparseMatrixIndexCSX<'a> as Follow<'a>>::Inner

Safety

impl<'a> PartialEq for SparseMatrixIndexCSX<'a>

fn eq(&self, other: &SparseMatrixIndexCSX<'a>) -> bool

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Verifiable for SparseMatrixIndexCSX<'_>

fn run_verifier( v: &mut Verifier<'_, '_>, pos: usize ) -> Result<(), InvalidFlatbuffer>

Runs the verifier for this type, assuming its at position pos in the verifier’s buffer. Should not need to be called directly.

impl<'a> Copy for SparseMatrixIndexCSX<'a>

impl<'a> StructuralPartialEq for SparseMatrixIndexCSX<'a>