contentry.java

一个数据挖掘软件ALPHAMINERR的整个过程的JAVA版源代码

/*
 *    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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

/**
 * Title: XELOPES Data Mining Library
 * Description: The XELOPES library is an open platform-independent and data-source-independent library for Embedded Data Mining.
 * Copyright: Copyright (c) 2002 Prudential Systems Software GmbH
 * Company: ZSoft (www.zsoft.ru), Prudsys (www.prudsys.com)
 * @author Sascha Trautzsch
 * @author Michael Thess
 * @version 1.0
 */

package com.prudsys.pdm.Models.Classification.DecisionTree.Algorithms.GenTree;

/**
 * Contains distribution of classes for a category (if categorical attribute)
 * or an interval (if numeric attribute).
 */
public class ContEntry
{
  /** Numbers of vectors in classes. */
  public int[] classNumb;

  /** Number of all vectors. */
  public int sum;

  /**
   * Empty constructor.
   */
  public ContEntry()
  {
  }

  /**
   * Constructor from class numbers of this category.
   *
   * @param classNumb number of vectors belonging to the classes
   */
  public ContEntry(int[] classNumb) {

    this.classNumb = classNumb;
    sum = 0;
    if (classNumb != null) {
      for (int i = 0; i < classNumb.length; i++)
        sum = sum + classNumb[i];
    };
  }

  /**
   * Returns number of all vectors of category.
   *
   * @return number of all vectors of category
   */
  public int getSum()
  {
    return sum;
  }

  /**
   * Returns numbers of vectors for all classes of category.
   *
   * @return array of number of vectors for all classes
   */
  public int[] getClassNumb()
  {
    return classNumb;
  }

  /**
   * Sets numbers of vectors of all classes of category.
   *
   * @param classNumb new array of number of vectors in classes
   */
  public void setClassNumb(int[] classNumb)
  {
    this.classNumb = classNumb;
  }

  /**
   * Returns number of classes.
   *
   * @return number of classes
   */
  public int getNumberOfClasses() {

    if (classNumb != null)
      return classNumb.length;
    else
      return 0;
  }

  /**
   * Returns contingence entry as string.
   *
   * @return string representation of this class
   */
  public String toString() {

    String desc = "";
    for (int i = 0; i < getNumberOfClasses(); i++)
      desc = desc + "c" + String.valueOf(i) + ": " + classNumb[i] + " ";
    desc = desc + "sum = " + sum;

    return desc;
  }
}