valueAssociations.java

/***********************************************************************

	This file is part of KEEL-software, the Data Mining tool for regression, 
	classification, clustering, pattern mining and so on.

	Copyright (C) 2004-2010
	
	F. Herrera (herrera@decsai.ugr.es)
    L. S�nchez (luciano@uniovi.es)
    J. Alcal�-Fdez (jalcala@decsai.ugr.es)
    S. Garc�a (sglopez@ujaen.es)
    A. Fern�ndez (alberto.fernandez@ujaen.es)
    J. Luengo (julianlm@decsai.ugr.es)

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program.  If not, see http://www.gnu.org/licenses/
  
**********************************************************************/

/**
 * <p>
 * @author Written by Juli�n Luengo Mart�n 07/03/2006
 * @version 0.3
 * @since JDK 1.5
 * </p>
 */
package keel.Algorithms.Preprocess.Missing_Values.svmImpute;

/**
 * <p>
 * This class stores a frequency list of classes for a given value, i.e. for a same value in a attribute, 
 * it stores the number of times a determined class is associated with the value. 
 * </p>
 */
public class valueAssociations {
    protected FreqList list = null;
    protected double value;

    /**
     * <p> 
     * Creates a new instance of valueAssociations
     * </p> 
     */
    public valueAssociations(double value1) {
        this.value = value1;
        list = new FreqList();
    }
    
    /**
     * <p>
     * This method adds an element (a class) to the list
     * </p>
     * @param elem The index of the class we want to add
     */
    public void addElement(double elem){
        list.AddElement(String.valueOf(elem));
    }
    
    /**
     * <p>
     * Resets the iterator of the list to the beginning
     * </p>
     */
    public void reset(){
        list.reset();
    }
    
    /**
     * <p>
     * Returns the frequency of the class pointed by the current state of the list's iterator
     * </p>
     * @return The current frequency 
     */
    public int getCurrentFreq(){
        return list.getCurrent().getFreq();
    }
    
    /**
     * <p>
     * Obtains the value of the class pointed by the current state of the list's iterator
     * </p>
     * @return The current frequency
     */
    public String getCurrentValue(){
        return list.getCurrent().getValue();
    }
    
    /**
     * <p>
     * Iterates to the next element in the list
     * </p>
     */
    public void iterate(){
        list.iterate();
    }
    
    /**
     * <p>
     * Tests if the iterator is out of the bounds of the list
     * </p>
     * @return True if the iterator has reached the end of the list, false in other case
     */
    public boolean outOfBounds(){
        return list.outOfBounds();
    }
    
    /**
     * <p>
     * Gives the total number of elements in the list (i.e. the sum of the frequencies).
     * </p>
     * @return the total number of elements in the list
     */
    public int totalElems(){
        return list.totalElems();
    }
    
    /**
     * <p>
     * The reference value of this object 
     * </p>
     * @return The representative value of this object. 
     */
    public double getValue(){
        return value;
    }
}