org.cognity.data

Class ListDataSet

java.lang.Object

org.cognity.data.ListDataSet

All Implemented Interfaces:

Iterable<DataExample>, Collection<DataExample>, DataSet

public final class ListDataSet
extends Object
implements DataSet

Implements a data set which stores all data examples in a list.
All data examples are stored in memory, it may be undesirable for big data sets.

Author:

Artur Markiewicz

Constructor Summary

Constructors

Constructor and Description
ListDataSet(int inputSize)
ListDataSet(int inputSize, int targetSize)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	add(DataExample data)
boolean	addAll(Collection<? extends DataExample> collection)
void	clear()
boolean	contains(Object o)
boolean	containsAll(Collection<?> collection)
boolean	equals(Object obj)
DataExample	get(int index) Returns a data example at specified position.
int	getInputSize() Returns the size of input vectors in this data set.
int	getTargetSize() Return the size of target vectors in this data set.
int	hashCode()
boolean	isEmpty()
boolean	isSupervised() Returns true if this data set is supervised.
Iterator<DataExample>	iterator()
boolean	remove(Object o)
boolean	removeAll(Collection<?> collection)
boolean	retainAll(Collection<?> collection)
int	size()
Object[]	toArray()
<T> T[]	toArray(T[] a)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ListDataSet

public ListDataSet(int inputSize,
           int targetSize)

ListDataSet

public ListDataSet(int inputSize)

Method Detail

add

public boolean add(DataExample data)

Specified by:

add in interface Collection<DataExample>

addAll

public boolean addAll(Collection<? extends DataExample> collection)

Specified by:

addAll in interface Collection<DataExample>

clear

public void clear()

Specified by:

clear in interface Collection<DataExample>

contains

public boolean contains(Object o)

Specified by:

contains in interface Collection<DataExample>

containsAll

public boolean containsAll(Collection<?> collection)

Specified by:

containsAll in interface Collection<DataExample>

remove

public boolean remove(Object o)

Specified by:

remove in interface Collection<DataExample>

removeAll

public boolean removeAll(Collection<?> collection)

Specified by:

removeAll in interface Collection<DataExample>

retainAll

public boolean retainAll(Collection<?> collection)

Specified by:

retainAll in interface Collection<DataExample>

get

public DataExample get(int index)

Description copied from interface: DataSet

Returns a data example at specified position.

Specified by:

get in interface DataSet

Parameters:

index - the data example position. Cannot be negative.

Returns:

a data example at specified position

iterator

public Iterator<DataExample> iterator()

Specified by:

iterator in interface Iterable<DataExample>

Specified by:

iterator in interface Collection<DataExample>

size

public int size()

Specified by:

size in interface Collection<DataExample>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection<DataExample>

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection<DataExample>

toArray

public <T> T[] toArray(T[] a)

Specified by:

toArray in interface Collection<DataExample>

getInputSize

public int getInputSize()

Description copied from interface: DataSet

Returns the size of input vectors in this data set.

Specified by:

getInputSize in interface DataSet

Returns:

the size of input vectors in this data set

getTargetSize

public int getTargetSize()

Description copied from interface: DataSet

Return the size of target vectors in this data set.

Specified by:

getTargetSize in interface DataSet

Returns:

the size of target vectors in this data set

isSupervised

public boolean isSupervised()

Description copied from interface: DataSet

Returns true if this data set is supervised. The data set is supervised if and only if all underlying data examples are supervised.

Specified by:

isSupervised in interface DataSet

Returns:

true if this data set is supervised

equals

public boolean equals(Object obj)

Specified by:

equals in interface Collection<DataExample>

Overrides:

equals in class Object

hashCode

public int hashCode()

Specified by:

hashCode in interface Collection<DataExample>

Overrides:

hashCode in class Object