de.jungblut.classification.tree

Enum FeatureType

java.lang.Object

java.lang.Enum<FeatureType>

de.jungblut.classification.tree.FeatureType

All Implemented Interfaces:

Serializable, Comparable<FeatureType>

public enum FeatureType
extends Enum<FeatureType>

Denotes a feature type, either numerical or nominal. This is majorly used in DecisionTree.

Author:

thomasjungblut

Enum Constant Summary

Enum Constants

Enum Constant and Description
NOMINAL
NUMERICAL

Method Summary

Modifier and Type	Method and Description
static FeatureType[]	allNominal(int numFeatures) Creates an array that denotes the type of a feature at a given feature index.
static FeatureType[]	allNumerical(int numFeatures) Creates an array that denotes the type of a feature at a given feature index.
boolean	isNominal()
boolean	isNumerical()
static FeatureType	valueOf(String name) Returns the enum constant of this type with the specified name.
static FeatureType[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

NOMINAL

public static final FeatureType NOMINAL

NUMERICAL

public static final FeatureType NUMERICAL

Method Detail

values

public static FeatureType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (FeatureType c : FeatureType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static FeatureType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

isNumerical

public boolean isNumerical()

Returns:

true if this is numerical.

isNominal

public boolean isNominal()

Returns:

true if this is nominal.

allNominal

public static FeatureType[] allNominal(int numFeatures)

Creates an array that denotes the type of a feature at a given feature index. This method sets all features to a nominal/categorical type.

Parameters:

numFeatures - the number of features.

Returns:

the array that contains the type mappings.

allNumerical

public static FeatureType[] allNumerical(int numFeatures)

Creates an array that denotes the type of a feature at a given feature index. This method sets all features to a numeric type.

Parameters:

numFeatures - the number of features.

Returns:

the array that contains the type mappings.