org.apache.ignite.ml.structures

Class DatasetRow<V extends Vector>

java.lang.Object

org.apache.ignite.ml.structures.DatasetRow<V>

All Implemented Interfaces:

Externalizable, Serializable

Direct Known Subclasses:

LabeledVector

public class DatasetRow<V extends Vector>
extends Object
implements Serializable, Externalizable

Class to keep one observation in dataset. This is a base class for labeled and unlabeled rows.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected V	vector Vector.

Constructor Summary

Constructors

Constructor and Description
DatasetRow() Default constructor (required by Externalizable).
DatasetRow(V vector)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
V	features() Get the vector.
double	get(int idx) Gets the value at specified index.
Serializable	getRaw(int idx) Gets the value at specified index.
int	hashCode()
void	readExternal(ObjectInput in)
void	set(int idx, double val) Sets value.
int	size() Gets cardinality of dataset row (maximum number of the elements).
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

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

Field Detail

vector

protected V extends Vector vector

Vector.

Constructor Detail

DatasetRow

public DatasetRow()

Default constructor (required by Externalizable).

DatasetRow

public DatasetRow(V vector)

Method Detail

features

public V features()

Get the vector.

Returns:

Vector.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

size

public int size()

Gets cardinality of dataset row (maximum number of the elements).

Returns:

This dataset row's cardinality.

get

public double get(int idx)

Gets the value at specified index.

Parameters:

idx - DatasetRow index.

Returns:

DatasetRow value.

Throws:

IndexException - Throw if index is out of bounds.

getRaw

public Serializable getRaw(int idx)

Gets the value at specified index.

Parameters:

idx - DatasetRow index.

Returns:

DatasetRow value.

Throws:

IndexException - Throw if index is out of bounds.

set

public void set(int idx,
                double val)

Sets value.

Parameters:

idx - Dataset row index to set value at.

val - Value to set.

Throws:

IndexException - Throw if index is out of bounds.