Package com.yahoo.labs.samoa.instances

Class InstanceImpl

java.lang.Object

com.yahoo.labs.samoa.instances.InstanceImpl

All Implemented Interfaces:

Instance, MultiLabelInstance, java.io.Serializable

Direct Known Subclasses:

DenseInstance, MultilabelInstance, SparseInstance

public class InstanceImpl
extends java.lang.Object
implements MultiLabelInstance

The Class InstanceImpl.

Author:

abifet

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected InstanceData	instanceData	The instance data.
protected InstancesHeader	instanceHeader	The instance information.
protected double	weight	The weight.

Constructor Summary

Constructors

Constructor	Description
InstanceImpl(double weight, double[] res)	Instantiates a new instance.
InstanceImpl(double weight, double[] attributeValues, int[] indexValues, int numberAttributes)	Instantiates a new instance.
InstanceImpl(double weight, InstanceData instanceData)	Instantiates a new instance.
InstanceImpl(int numAttributes)	Instantiates a new instance.
InstanceImpl(InstanceImpl inst)	Instantiates a new instance.

Method Summary

Modifier and Type	Method	Description
void	addSparseValues(int[] indexValues, double[] attributeValues, int numberAttributes)	Adds the sparse values.
Attribute	attribute(int instAttIndex)	Attribute.
Attribute	classAttribute()	Class attribute.
int	classIndex()	Class index.
boolean	classIsMissing()	Class is missing.
double	classValue()	Class value.
double	classValue(int instAttIndex)	Gets the value of an output attribute.
Instance	copy()	Copy.
Instances	dataset()	Dataset.
void	deleteAttributeAt(int i)	Delete attribute at.
int	index(int i)	Index.
int	indexOfAttribute(Attribute attribute)	Index of an Attribute.
Attribute	inputAttribute(int attributeIndex)	Gets an input attribute given its index.
void	insertAttributeAt(int i)	Insert attribute at.
boolean	isMissing(int instAttIndex)	Checks if is missing.
boolean	isMissing(Attribute attribute)	Checks if an attribute is missing.
boolean	isMissingSparse(int p)	Checks if is missing sparse.
int	numAttributes()	Num attributes.
int	numberOutputTargets()	Gets the number of output attributes.
int	numClasses()	Num classes.
int	numInputAttributes()	Gets the number of input attributes.
int	numOutputAttributes()	Gets the number of output attributes.
int	numValues()	Num values.
Attribute	outputAttribute(int outputIndex)	Gets an output attribute given its index.
void	setClassValue(double d)	Sets the class value.
void	setClassValue(int indexClass, double valueAttribute)	Sets the value of an output attribute.
void	setDataset(Instances dataset)	Sets the dataset.
void	setMissing(int instAttIndex)	Sets an attribute as missing
void	setMissing(Attribute attribute)	Sets an attribute as missing
void	setValue(int numAttribute, double d)	Sets the value.
void	setValue(Attribute attribute, double value)	Sets the value of an attribute.
void	setWeight(double weight)	Sets the weight.
java.lang.String	stringValue(int i)	String value.
double[]	toDoubleArray()	To double array.
java.lang.String	toString()	Text representation of a InstanceImpl.
double	value(int instAttIndex)	Value.
double	value(Attribute attribute)	Value.
double	valueInputAttribute(int attributeIndex)	Gets the value of an input attribute.
double	valueOutputAttribute(int attributeIndex)	Gets the value of an output attribute.
double	valueSparse(int i)	Value sparse.
double	weight()	Weight.

Methods inherited from class java.lang.Object

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

Field Detail

weight

protected double weight

The weight.

instanceData

protected InstanceData instanceData

The instance data.

instanceHeader

protected InstancesHeader instanceHeader

The instance information.

Constructor Detail

InstanceImpl

public InstanceImpl(InstanceImpl inst)

Instantiates a new instance.

Parameters:

inst - the inst

InstanceImpl

public InstanceImpl(double weight,
                    double[] res)

Instantiates a new instance.

Parameters:

weight - the weight

res - the res

InstanceImpl

public InstanceImpl(double weight,
                    double[] attributeValues,
                    int[] indexValues,
                    int numberAttributes)

Instantiates a new instance.

Parameters:

weight - the weight

attributeValues - the attribute values

indexValues - the index values

numberAttributes - the number attributes

InstanceImpl

public InstanceImpl(double weight,
                    InstanceData instanceData)

Instantiates a new instance.

Parameters:

weight - the weight

instanceData - the instance data

InstanceImpl

public InstanceImpl(int numAttributes)

Instantiates a new instance.

Parameters:

numAttributes - the num attributes

Method Detail

weight

public double weight()

Weight.

Specified by:

weight in interface Instance

Returns:

the double

setWeight

public void setWeight(double weight)

Sets the weight.

Specified by:

setWeight in interface Instance

Parameters:

weight - the new weight

attribute

public Attribute attribute(int instAttIndex)

Attribute.

Specified by:

attribute in interface Instance

Parameters:

instAttIndex - the inst att index

Returns:

the attribute

indexOfAttribute

public int indexOfAttribute(Attribute attribute)

Description copied from interface: Instance

Index of an Attribute.

Specified by:

indexOfAttribute in interface Instance

Returns:

the index of an attribute

deleteAttributeAt

public void deleteAttributeAt(int i)

Delete attribute at.

Specified by:

deleteAttributeAt in interface Instance

Parameters:

i - the i

insertAttributeAt

public void insertAttributeAt(int i)

Insert attribute at.

Specified by:

insertAttributeAt in interface Instance

Parameters:

i - the i

numAttributes

public int numAttributes()

Num attributes.

Specified by:

numAttributes in interface Instance

Returns:

the int

value

public double value(int instAttIndex)

Value.

Specified by:

value in interface Instance

Parameters:

instAttIndex - the inst att index

Returns:

the double

isMissing

public boolean isMissing(int instAttIndex)

Checks if is missing.

Specified by:

isMissing in interface Instance

Parameters:

instAttIndex - the inst att index

Returns:

true, if is missing

numValues

public int numValues()

Num values.

Specified by:

numValues in interface Instance

Returns:

the int

index

public int index(int i)

Index.

Specified by:

index in interface Instance

Parameters:

i - the i

Returns:

the int

valueSparse

public double valueSparse(int i)

Value sparse.

Specified by:

valueSparse in interface Instance

Parameters:

i - the i

Returns:

the double

isMissingSparse

public boolean isMissingSparse(int p)

Checks if is missing sparse.

Specified by:

isMissingSparse in interface Instance

Parameters:

p - the p

Returns:

true, if is missing sparse

value

public double value(Attribute attribute)

Value.

Specified by:

value in interface Instance

Parameters:

attribute - the attribute

Returns:

the double

stringValue

public java.lang.String stringValue(int i)

String value.

Specified by:

stringValue in interface Instance

Parameters:

i - the i

Returns:

the string

toDoubleArray

public double[] toDoubleArray()

To double array.

Specified by:

toDoubleArray in interface Instance

Returns:

the double[]

setValue

public void setValue(int numAttribute,
                     double d)

Sets the value.

Specified by:

setValue in interface Instance

Parameters:

numAttribute - the num attribute

d - the d

classValue

public double classValue()

Class value.

Specified by:

classValue in interface Instance

Returns:

the double

classIndex

public int classIndex()

Class index.

Specified by:

classIndex in interface Instance

Returns:

the int

numClasses

public int numClasses()

Num classes.

Specified by:

numClasses in interface Instance

Returns:

the int

classIsMissing

public boolean classIsMissing()

Class is missing.

Specified by:

classIsMissing in interface Instance

Returns:

true, if successful

classAttribute

public Attribute classAttribute()

Class attribute.

Specified by:

classAttribute in interface Instance

Returns:

the attribute

setClassValue

public void setClassValue(double d)

Sets the class value.

Specified by:

setClassValue in interface Instance

Parameters:

d - the new class value

copy

public Instance copy()

Copy.

Specified by:

copy in interface Instance

Returns:

the instance

dataset

public Instances dataset()

Dataset.

Specified by:

dataset in interface Instance

Returns:

the instances

setDataset

public void setDataset(Instances dataset)

Sets the dataset.

Specified by:

setDataset in interface Instance

Parameters:

dataset - the new dataset

addSparseValues

public void addSparseValues(int[] indexValues,
                            double[] attributeValues,
                            int numberAttributes)

Adds the sparse values.

Specified by:

addSparseValues in interface Instance

Parameters:

indexValues - the index values

attributeValues - the attribute values

numberAttributes - the number attributes

toString

public java.lang.String toString()

Text representation of a InstanceImpl.

Overrides:

toString in class java.lang.Object

numInputAttributes

public int numInputAttributes()

Description copied from interface: Instance

Gets the number of input attributes.

Specified by:

numInputAttributes in interface Instance

Returns:

the number of input attributes

numOutputAttributes

public int numOutputAttributes()

Description copied from interface: Instance

Gets the number of output attributes.

Specified by:

numOutputAttributes in interface Instance

Returns:

the number of output attributes

numberOutputTargets

public int numberOutputTargets()

Description copied from interface: Instance

Gets the number of output attributes.

Specified by:

numberOutputTargets in interface Instance

Returns:

the number of output attributes

classValue

public double classValue(int instAttIndex)

Description copied from interface: Instance

Gets the value of an output attribute.

Specified by:

classValue in interface Instance

Parameters:

instAttIndex - the index

Returns:

the value

setClassValue

public void setClassValue(int indexClass,
                          double valueAttribute)

Description copied from interface: Instance

Sets the value of an output attribute.

Specified by:

setClassValue in interface Instance

Parameters:

indexClass - the output attribute index

valueAttribute - the value of the attribute

outputAttribute

public Attribute outputAttribute(int outputIndex)

Description copied from interface: Instance

Gets an output attribute given its index.

Specified by:

outputAttribute in interface Instance

Parameters:

outputIndex - the index

Returns:

the attribute

inputAttribute

public Attribute inputAttribute(int attributeIndex)

Description copied from interface: Instance

Gets an input attribute given its index.

Specified by:

inputAttribute in interface Instance

Parameters:

attributeIndex - the index

Returns:

the attribute

valueInputAttribute

public double valueInputAttribute(int attributeIndex)

Description copied from interface: Instance

Gets the value of an input attribute.

Specified by:

valueInputAttribute in interface Instance

Parameters:

attributeIndex - the index

Returns:

the value

valueOutputAttribute

public double valueOutputAttribute(int attributeIndex)

Description copied from interface: Instance

Gets the value of an output attribute.

Specified by:

valueOutputAttribute in interface Instance

Parameters:

attributeIndex - the index

Returns:

the value

setMissing

public void setMissing(int instAttIndex)

Description copied from interface: Instance

Sets an attribute as missing

Specified by:

setMissing in interface Instance

Parameters:

instAttIndex - , the attribute's index

setMissing

public void setMissing(Attribute attribute)

Description copied from interface: Instance

Sets an attribute as missing

Specified by:

setMissing in interface Instance

Parameters:

attribute - , the Attribute

isMissing

public boolean isMissing(Attribute attribute)

Description copied from interface: Instance

Checks if an attribute is missing.

Specified by:

isMissing in interface Instance

Parameters:

attribute - , the Attribute

Returns:

true, if is missing

setValue

public void setValue(Attribute attribute,
                     double value)

Description copied from interface: Instance

Sets the value of an attribute.

Specified by:

setValue in interface Instance

Parameters:

attribute - , the Attribute

value - the value