TakagiSugeno.java

//+++++++++++++++++++++++++++++++++++++++++++++++++++++
// File automatically generated by Xfuzzy - DO NOT EDIT
//+++++++++++++++++++++++++++++++++++++++++++++++++++++

package pkg.xfsg.defuz;

import xfuzzy.lang.*;

public class TakagiSugeno extends DefuzMethod {
 public TakagiSugeno() {
   super("xfsg","TakagiSugeno");
   Parameter single[] = new Parameter[0];
   setSingleParameters(single);
  }

 public double compute(AggregateMemFunc mf) {
   double min = mf.min();
   double max = mf.max();
  double denom=0;
  for(int i=0; i<mf.conc.length; i++) denom += mf.conc[i].degree();
  if(denom==0) return (min+max)/2;

  double num=0;
  for(int i=0; i<mf.conc.length; i++) {
   double f = mf.conc[i].param(0);
   for(int j=0; j<mf.input.length; j++) f += mf.conc[i].param(j+1)*mf.input[j];
   num += mf.conc[i].degree()*f;
  }
  return num/denom;

  }

 public boolean test () {
   return true;
  }

 public boolean test(AggregateMemFunc mf) {
   return true;
  }

 public String getJavaCode() {
   String eol = System.getProperty("line.separator", "\n");
   String code = "";
   code += "     double denom=0;"+eol;
   code += "     for(int i=0; i<mf.conc.length; i++) denom += mf.conc[i].degree();"+eol;
   code += "     if(denom==0) return (min+max)/2;"+eol;
   code += "     double num=0;"+eol;
   code += "     for(int i=0; i<mf.conc.length; i++) {"+eol;
   code += "      double f = mf.conc[i].param(0);"+eol;
   code += "      for(int j=0; j<mf.input.length; j++) f += mf.conc[i].param(j+1)*mf.input[j];"+eol;
   code += "      num += mf.conc[i].degree()*f;"+eol;
   code += "     }"+eol;
   code += "     return num/denom;"+eol;
   return code;
  }

 public String getCCode() {
   String eol = System.getProperty("line.separator", "\n");
   String code = "";
   code += "     double f,num=0,denom=0;"+eol;
   code += "     int i,j;"+eol;
   code += "     for(i=0; i<mf.length; i++) denom += mf.degree[i];"+eol;
   code += "     if(denom==0) return (min+max)/2;"+eol;
   code += "     for(i=0; i<mf.length; i++) {"+eol;
   code += "      f = mf.conc[i].param(0);"+eol;
   code += "      for(j=0; j<mf.inputlength; j++) f += mf.conc[i].param(j+1)*mf.input[j];"+eol;
   code += "      num += mf.degree[i]*f;"+eol;
   code += "     }"+eol;
   code += "     return num/denom;"+eol;
   return code;
  }

 public String getCppCode() {
   String eol = System.getProperty("line.separator", "\n");
   String code = "";
   code += "     double num=0,denom=0;"+eol;
   code += "     for(int i=0; i<mf.length; i++) {"+eol;
   code += "      double f = mf.conc[i]->param(0);"+eol;
   code += "      for(int j=0; j<mf.inputlength; j++) f += mf.conc[i]->param(j+1)*mf.input[j];"+eol;
   code += "      num += mf.conc[i]->degree()*f;"+eol;
   code += "      denom += mf.conc[i]->degree();"+eol;
   code += "     }"+eol;
   code += "     if(denom==0) return (min+max)/2;"+eol;
   code += "     return num/denom;"+eol;
   return code;
  }
//+++++++++++++++++++
 public void derivative(AggregateMemFunc mf, double derror) {
  double denom=0;
  for(int i=0; i<mf.conc.length; i++) denom += mf.conc[i].degree();
  if(denom==0) return;

  double num=0;
  double f[] = new double[mf.conc.length];
  for(int i=0; i<mf.conc.length; i++) {
   f[i] = mf.conc[i].param(0);
   for(int j=0; j<mf.input.length; j++) f[i]+=mf.conc[i].param(j+1)*mf.input[j];
   num += mf.conc[i].degree()*f[i];
  }
  double y = num/denom;

  for(int i=0; i<mf.conc.length; i++) {
   mf.conc[i].setDegreeDeriv(derror*(f[i]-y)/denom);
   mf.conc[i].setParamDeriv(0,derror*mf.conc[i].degree()/denom);
   for(int j=0; j<mf.input.length; j++)
    mf.conc[i].setParamDeriv(j+1,derror*mf.conc[i].degree()*mf.input[j]/denom);
  }
 }
//+++++++++++++++++++

}