[galib] Custom initializer

[Michele Conconi]

Hi everybody.

I' trying to define my own initializer for a GARealGenome genome. 
Basically I can obtain my initial value, but the progran than does not 
run, giving me many times this error message:

GAAlleleSet::allele<unsigned int>:
this method has not been defined.
c:\galib27\ga\GAAllele.C : 219

Here  is my code
--------------------------------
#include <stdio.h>
#include <math.h>

#include "GASimpleGA.h"
#include "GARealGenome.h"
#include "std_stream.h"

#define cout STD_COUT

float Objective(GAGenome &);
void MyInitializer(GAGenome& g);

int
main(int argc, char **argv)
{

  unsigned int seed = 0;

  int popsize  = 5;
  int ngen     = 10;
  float pmut   = 0.001;
  float pcross = 0.9;

  unsigned int n=3;
  float *target = new float[n];
  float min[] = {-5, -5,  -5};
  float max[] = {5, 10,  15};
  unsigned int i;

 for(i=0; i<n; i++)
{
target[i] = GARandomFloat(min[i], max[i]);
cout<<target[i]<<"  ";
}
    
cout << "\n\n";

GARealAlleleSetArray alleles;
alleles.add(min[0],max[0]);
alleles.add(min[1],max[1]);
alleles.add(min[2],max[2]);

GARealGenome genome(alleles, Objective, (void *)target);

GASimpleGA ga(genome);
ga.populationSize(popsize);
ga.nGenerations(ngen);
ga.pMutation(pmut);
ga.pCrossover(pcross);

ga.scoreFilename("bog.dat");
ga.flushFrequency(50);

cout<<genome<<"\n\n";
genome.initializer(MyInitializer);
genome.initialize();
cout<<genome<<"\n\n";

ga.evolve(seed);

genome = ga.statistics().bestIndividual();
cout<<genome<<"\n\n";

delete [] target;

return 0;
}


float
Objective(GAGenome& g)
{
  GARealGenome & genome = (GARealGenome &)g;
  float *sequence = (float *)g.userData();
  float value=0;
  for(int i=0; i<3; i++)
    value += 1.0 / (1.0 + fabs(genome.gene(i) - sequence[i]));
  return value;
}

void
MyInitializer(GAGenome& g)
{
    GARealGenome & genome = (GARealGenome &)g;
    for(int i=0; i<3; i++)
        genome.gene(i,2);
}
---------------------------------------------------------

What's the problem? I really do not understand and, still worst, I do 
not know how to find more galib example or other information to solve 
this problem. I reed the galibdoc.pdf, looking for answere in the 
mailinglist, studied the examples. What's the next step to improve my 
(poor) ability? Thanks in advance for your help

Michele

-- 
* Eng. Michele Conconi*
Ph.D. student
DIEM - Dept. of Mechanical Engineering
Alma Mater Studiorum - University of Bologna
Viale Risorgimento 2, 40136, Bologna, Italy
Email: michele.conconi at unibo.it
Website: http://www.diem.ing.unibo.it/grab
Office: (+39) 051 20 93451
Mobile: (+39) 329 0287996



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