dominatecomaparator.java

来自「pso源程序」· Java 代码 · 共 55 行

/**
 * Description: For comparison of goodness in landscape.
 *
 * @ Author        Create/Modi     Note
 * Xiaofeng Xie    Oct 15, 2004
 *
 * @version 1.0
 * @Since MAOS1.2
 */

package maosKernel.represent.encode.debEncode;

import Global.define.*;

public class DominateComaparator {

  public static int compareDominate(double fit1, double fit2) {
    if(fit1<fit2) {
      return MultiCompareEnumValue.DOMINATE_YES;
    }
    if(fit1>fit2) {
      return MultiCompareEnumValue.DOMINATE_NON;
    }
    return MultiCompareEnumValue.DOMINATE_EQUAL;
  }

/* check the magnitude of two array, each element is in same important
 **/
  public static int compareDominate(double[] fit1, double[] fit2) {
    if (fit1.length!=fit2.length) {
      return GlobalValue.INVALID_NATURAL_NUMBER;  //error
    }
    if(fit1.length==0) return MultiCompareEnumValue.DOMINATE_EQUAL;
    int dominateSize = 0;
    int nondominateSize = 0;
    for (int i=0; i<fit1.length; i++) {
      if (fit1[i]<fit2[i]) {
        dominateSize ++;
      } else if (fit1[i]>fit2[i]){
        nondominateSize++;
      }
    }
    if(dominateSize!=0&&nondominateSize!=0) {
      return MultiCompareEnumValue.DOMINATE_CROSS;
    }
    if(dominateSize==0&&nondominateSize!=0) {
      return MultiCompareEnumValue.DOMINATE_NON;
    }
    if(dominateSize!=0&&nondominateSize==0) {
      return MultiCompareEnumValue.DOMINATE_YES;
    }
    return MultiCompareEnumValue.DOMINATE_EQUAL; //same
  }
}