org.apache.mahout.math.flavor

Interface MatrixFlavor

All Known Implementing Classes:

MatrixFlavor.FlavorImpl

public interface MatrixFlavor

A set of matrix structure properties that I denote as "flavor" (by analogy to quarks)

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	MatrixFlavor.FlavorImpl

Field Summary

Fields

Modifier and Type	Field and Description
static MatrixFlavor	DENSELIKE This default for DenseMatrix-like structures
static MatrixFlavor	DIAGONALLIKE This is default flavor for DiagonalMatrix and the likes.
static MatrixFlavor	SPARSELIKE This is default flavor for SparseRowMatrix-like.
static MatrixFlavor	SPARSEROWLIKE This is default flavor for SparseMatrix-like structures, i.e.

Method Summary

Methods

Modifier and Type	Method and Description
BackEnum	getBacking() Whether matrix is backed by a native system -- such as java memory, lapack/atlas, Magma etc.
TraversingStructureEnum	getStructure() Structure flavors
boolean	isDense()

Field Detail

DENSELIKE

static final MatrixFlavor DENSELIKE

This default for DenseMatrix-like structures

SPARSELIKE

static final MatrixFlavor SPARSELIKE

This is default flavor for SparseRowMatrix-like.

SPARSEROWLIKE

static final MatrixFlavor SPARSEROWLIKE

This is default flavor for SparseMatrix-like structures, i.e. sparse matrix blocks, where few, perhaps most, rows may be missing entirely.

DIAGONALLIKE

static final MatrixFlavor DIAGONALLIKE

This is default flavor for DiagonalMatrix and the likes.

Method Detail

getBacking

BackEnum getBacking()

Whether matrix is backed by a native system -- such as java memory, lapack/atlas, Magma etc.

getStructure

TraversingStructureEnum getStructure()

Structure flavors

isDense

boolean isDense()