weka.core.pmml

Class SparseArray

java.lang.Object

weka.core.pmml.Array

weka.core.pmml.SparseArray

All Implemented Interfaces:

java.io.Serializable

public class SparseArray
extends Array
implements java.io.Serializable

Implementation of a sparse array. Extends Array.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class weka.core.pmml.Array

Array.ArrayType

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.List<java.lang.Integer>	m_indices The indices of the sparse array
protected int	m_numNonZero The number of non-zero elements
protected int	m_numValues The size of the array if known

Fields inherited from class weka.core.pmml.Array

m_type, m_values

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SparseArray(Array.ArrayType type, java.util.List<java.lang.Object> values, java.util.List<java.lang.Integer> indices) Construct a sparse array from the given values and indices
protected	SparseArray(org.w3c.dom.Element arrayE) Construct a sparse array from an XML node

Method Summary

Modifier and Type	Method and Description
int	index(int position) Returns the index of the value stored at the given position
protected void	initialize(org.w3c.dom.Element arrayE) Initializes the array from the supplied XML element.
boolean	isSparse() Overrides isSparse() in Array and always returns true.
int	locateIndex(int index) Locates the greatest index that is not greater than the given index.
int	numNonZero() Get the number of non-zero values in this sparse array
int	numValues() Get the number of values in this array.
java.lang.String	toString()
java.lang.String	value(int arrIndex) Gets the value at index from the array.

Methods inherited from class weka.core.pmml.Array

actualValue, contains, contains, contains, contains, create, create, getType, isArray, valueDouble, valueFloat, valueInt, valueSparse, valueSparseDouble, valueSparseFloat, valueSparseInt, valueSparseString, valueString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

m_numValues

protected int m_numValues

The size of the array if known

m_numNonZero

protected int m_numNonZero

The number of non-zero elements

m_indices

protected java.util.List<java.lang.Integer> m_indices

The indices of the sparse array

Constructor Detail

SparseArray

protected SparseArray(org.w3c.dom.Element arrayE)
               throws java.lang.Exception

Construct a sparse array from an XML node

Parameters:

arrayE - the Element containing the XML

Throws:

java.lang.Exception - if something goes wrong

SparseArray

protected SparseArray(Array.ArrayType type,
                      java.util.List<java.lang.Object> values,
                      java.util.List<java.lang.Integer> indices)

Construct a sparse array from the given values and indices

Parameters:

type - the type of the array elements

values - the values of the array

indices - the indices of the array

Method Detail

initialize

protected void initialize(org.w3c.dom.Element arrayE)
                   throws java.lang.Exception

Initializes the array from the supplied XML element.

Overrides:

initialize in class Array

Parameters:

arrayE - the XML containing the array

Throws:

java.lang.Exception - if something goes wrong

isSparse

public boolean isSparse()

Overrides isSparse() in Array and always returns true.

Overrides:

isSparse in class Array

Returns:

true always

numValues

public int numValues()

Get the number of values in this array.

Overrides:

numValues in class Array

Returns:

the number of values in this array.

numNonZero

public int numNonZero()

Get the number of non-zero values in this sparse array

Returns:

the number of values that are non-zero

index

public int index(int position)

Returns the index of the value stored at the given position

Overrides:

index in class Array

Parameters:

position - the position

Returns:

the index of the value stored at the given position

locateIndex

public int locateIndex(int index)

Locates the greatest index that is not greater than the given index.

Returns:

the internal index of the attribute index. Returns -1 if no index with this property could be found

value

public java.lang.String value(int arrIndex)
                       throws java.lang.Exception

Gets the value at index from the array.

Overrides:

value in class Array

Parameters:

index - the index of the value to get.

Returns:

the value at index in the array as as String.

Throws:

java.lang.Exception - if index is out of bounds.

toString

public java.lang.String toString()

Overrides:

toString in class Array