keel.Algorithms.Discretizers.MVD

Class Interval

java.lang.Object

keel.Algorithms.Discretizers.MVD.Interval

public class Interval
extends java.lang.Object

Simple class to codify an interval for a numerical attribute

Since:

JDK1.6

Version:

1.0

Author:

Written by Julian Luengo Martin (SCI2S research group, DECSAI in ETSIIT, University of Granada), 19/04/2011

Field Summary

Fields

Modifier and Type	Field and Description
double	lowerbound Interval lower bound.
double	upperbound Interval upper bound.

Constructor Summary

Constructors

Constructor and Description
Interval(double low, double up, int _attribute) Parametrized constructor

Method Summary

Modifier and Type	Method and Description
void	addToCoveredInstances(int index) Adds the index of the instance to the list of covered instances.
boolean	covers(Instance inst) Checks if the provided instance is covered by this interval in the specified attribute
boolean	covers(int index) Checks if the provided instance is covered by this interval in the specified attribute
java.util.ArrayList<java.lang.Integer>	getCoveredInstances() Provides the indexes of the instances in the data set covered by this interval
void	mergeIntervals(Interval _int) Merges the interval with the provided one
int	support() Provides the number of instances covered by this interval
java.lang.String	toString() Returns the object in form of string

Methods inherited from class java.lang.Object

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

Field Detail

lowerbound

public double lowerbound

Interval lower bound.

upperbound

public double upperbound

Interval upper bound.

Constructor Detail

Interval

public Interval(double low,
                double up,
                int _attribute)

Parametrized constructor

Parameters:

low - lower bound of the interval

up - upper bound of the interval

_attribute - the attribute in which this interval is located

Method Detail

covers

public boolean covers(Instance inst)

Checks if the provided instance is covered by this interval in the specified attribute

Parameters:

inst -

Returns:

True if the provided instance is covered, false otherwise.

covers

public boolean covers(int index)

Checks if the provided instance is covered by this interval in the specified attribute

Parameters:

index -

Returns:

True if the provided instance is covered, false otherwise.

addToCoveredInstances

public void addToCoveredInstances(int index)

Adds the index of the instance to the list of covered instances. BEWARE! it does not check for repeated indices!

Parameters:

index - the index of the instance to be stored

mergeIntervals

public void mergeIntervals(Interval _int)

Merges the interval with the provided one

Parameters:

_int - the interval to be merged with

support

public int support()

Provides the number of instances covered by this interval

Returns:

the number of covered instances (NOT the percentage)

getCoveredInstances

public java.util.ArrayList<java.lang.Integer> getCoveredInstances()

Provides the indexes of the instances in the data set covered by this interval

Returns:

the indexes of the instances in the data set covered by this interval

toString

public java.lang.String toString()

Returns the object in form of string

Overrides:

toString in class java.lang.Object

Returns:

the object in form of string