randomexampletable.java

一个很好的LIBSVM的JAVA源码。对于要研究和改进SVM算法的学者。可以参考。来自数据挖掘工具YALE工具包。

/*
 *  YALE - Yet Another Learning Environment
 *  Copyright (C) 2001-2004
 *      Simon Fischer, Ralf Klinkenberg, Ingo Mierswa, 
 *          Katharina Morik, Oliver Ritthoff
 *      Artificial Intelligence Unit
 *      Computer Science Department
 *      University of Dortmund
 *      44221 Dortmund,  Germany
 *  email: [e-mail]
 *  web:   http://yale.cs.uni-dortmund.de/
 *
 *  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 2 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, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 *  USA.
 */
package edu.udo.cs.yale.example;

import edu.udo.cs.yale.tools.LogService;

import java.io.File;
import java.io.IOException;
import java.io.StreamTokenizer;
import java.util.Iterator;
import java.util.List;
import java.util.LinkedList;

/** This class is used for example sets which should provide random values for the given 
 *  attributes, i.e. each random value lies in the same range as values of the given attributes
 *  (min and max). The random values are constructed by a {@link RandomDataRowReader}.
 *
 *  @version $Id: RandomExampleTable.java,v 2.2 2004/08/27 11:57:32 ingomierswa Exp $
 */
public class RandomExampleTable extends ExampleTable {

    
    private int size;

    public RandomExampleTable(List attributes, int size) {
	super(attributes);
	this.size = size;
    }

    public DataRowReader getDataReader() {
	return new RandomDataRowReader(getAttributes(), size);
    }

    public int getSize() {
	return size;
    }
}