mikera.arrayz

Interface ISparse

All Known Subinterfaces:

ISparseVector

All Known Implementing Classes:

ADiagonalMatrix, ASingleBandMatrix, ASingleElementVector, ASparseIndexedVector, ASparseVector, AxisVector, BlockDiagonalMatrix, DiagonalMatrix, GrowableIndexedVector, IdentityMatrix, PermutationMatrix, QuadtreeMatrix, ScalarMatrix, SingleElementVector, SparseColumnMatrix, SparseHashedVector, SparseImmutableVector, SparseIndexedVector, SparseRowMatrix, Vector0, WrappedDiagonalMatrix, ZeroArray, ZeroMatrix, ZeroVector

public interface ISparse

Marker interface for sparse arrays. May be used to hint that an array can be used to drive calculations more efficiently. A sparse array will often use less space than the total implied by its elements, assuming a sufficient number of elements are zero

Method Summary

Modifier and Type	Method and Description
double	density() Computes the density ratio of this sparse array (proportion of non-zero elements)

Method Detail

density

double density()

Computes the density ratio of this sparse array (proportion of non-zero elements)

Returns: