Package org.apache.sysds.runtime.matrix.data

Class LibMatrixEquals

java.lang.Object

org.apache.sysds.runtime.matrix.data.LibMatrixEquals

public class LibMatrixEquals
extends Object

Equals library for MatrixBlocks:

The implementations adhere to the properties of equals of:

• Reflective
• Symmetric
• Transitive
• Consistent

The equals also is valid if the metadata of number of non zeros are unknown in either input. An unknown number of non zero values is indicated by a negative nonzero count in the input matrices.

Method Summary

Modifier and Type	Method	Description
static boolean	equals(MatrixBlock a, MatrixBlock b)	Analyze if the two matrix blocks are equivalent, this functions even if the underlying allocation and data structure varies.
static boolean	equals(MatrixBlock a, MatrixBlock b, double eps)	Analyze if the two matrix blocks are equivalent, this functions even if the underlying allocation and data structure varies.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

equals

public static boolean equals(MatrixBlock a,
 MatrixBlock b)

Analyze if the two matrix blocks are equivalent, this functions even if the underlying allocation and data structure varies.

The implementations adhere to the properties of equals of:

• Reflective
• Symmetric
• Transitive
• Consistent

Parameters:

a - Matrix Block a to compare

b - Matrix Block b to compare

Returns:

If the block are equivalent.

equals

public static boolean equals(MatrixBlock a,
 MatrixBlock b,
 double eps)

Analyze if the two matrix blocks are equivalent, this functions even if the underlying allocation and data structure varies.

The implementations adhere to the properties of equals of:

• Reflective
• Symmetric
• Transitive
• Consistent

Parameters:

a - Matrix Block a to compare

b - Matrix Block b to compare

eps - Epsilon to allow between values

Returns:

If the block are equivalent.