Package org.apache.sysds.runtime.compress.utils

Interface Util

public interface Util

Field Summary

Fields

Modifier and Type	Field	Description
static org.apache.commons.logging.Log	LOG

Method Summary

Static Methods

Modifier and Type	Method	Description
static int[]	combine(int[] lhs, int[] rhs)
static boolean	eq(double a, double b)	Nan Enabled equals operator returns true on Nan == Nan.
static MatrixBlock	extractValues(double[] v, IColIndex colIndexes)
static int[]	genColsIndices(int numCols)
static int[]	genColsIndices(int cl, int cu)
static int[]	genColsIndicesOffset(int numCols, int start)
static int	getPow2(int x)
static MatrixBlock	matrixBlockFromDenseArray(double[] values, int nCol)
static MatrixBlock	matrixBlockFromDenseArray(double[] values, int nCol, boolean check)

Field Detail

LOG

static final org.apache.commons.logging.Log LOG

Method Detail

combine

static int[] combine(int[] lhs,
                     int[] rhs)

getPow2

static int getPow2(int x)

genColsIndices

static int[] genColsIndices(int numCols)

genColsIndices

static int[] genColsIndices(int cl,
                            int cu)

genColsIndicesOffset

static int[] genColsIndicesOffset(int numCols,
                                  int start)

matrixBlockFromDenseArray

static MatrixBlock matrixBlockFromDenseArray(double[] values,
                                             int nCol)

matrixBlockFromDenseArray

static MatrixBlock matrixBlockFromDenseArray(double[] values,
                                             int nCol,
                                             boolean check)

extractValues

static MatrixBlock extractValues(double[] v,
                                 IColIndex colIndexes)

eq

static boolean eq(double a,
                  double b)

Nan Enabled equals operator returns true on Nan == Nan.

Parameters:

a - value 1

b - value 2

Returns:

if they are equal on the bit level.