private IChromosome GenerateGANumChromosome()
{
var ch = GANumChromosome.NewChromosome();
ch.Generate();
return(ch);
}
/// <summary>
/// Evaluates function agains terminals
/// </summary>
/// <param name="chromosome"></param>
/// <param name="functionSet"></param>
/// <returns></returns>
public float Evaluate(IChromosome chromosome, IFunctionSet functionSet)
{
GANumChromosome ch = chromosome as GANumChromosome;
if (ch == null)
{
return(0);
}
else
{
//prepare terminals
var term = Globals.gpterminals.SingleTrainingData;
for (int i = 0; i < ch.val.Length; i++)
{
term[i] = ch.val[i];
}
var y = functionSet.Evaluate(_funToOptimize, -1);
if (double.IsNaN(y) || double.IsInfinity(y))
{
y = float.NaN;
}
//Save output in to output variable
term[term.Length - 1] = y;
if (IsMinimize)
{
y *= -1;
}
return((float)y);
}
}
/// <summary>
///
/// </summary>
/// <param name="lines"></param>
/// <param name="factory"></param>
/// <param name="curLine"></param>
/// <param name="typeChromosome"></param>
/// <returns></returns>
private int SecondPopulationFromString(string[] lines, GPFactory factory, int curLine, int typeChromosome = 1)
{
curLine++;
//Line 8: populationSize; maxFitness; BestChromosome
if (lines.Length <= curLine)
{
//MessageBox.Show("Fie is corrupt!");
return(-1);
}
var str = lines[curLine].Split(';');
if (lines[curLine] == "-" || lines[curLine] == "-\r")
{
return(curLine += 3);
}
//first number is popSIze
int popSize = 0;
if (!int.TryParse(str[0], out popSize))
{
popSize = 0;
}
if (_optimizePanel != null)
{
//last number i +s optimization type
string optType = str[str.Length - 1];
if (optType == "0" || optType == "0\r")
{
_optimizePanel.SetOptType(false);
}
else
{
_optimizePanel.SetOptType(true);
}
if (typeChromosome == 1)
{
PrepareGP(false);
}
else if (typeChromosome == 2)
{
PrepareGA(false);
GANumChromosome.functionSet = factory.GetFunctionSet();
}
}
curLine++;
//Get Optimization function
List <IChromosome> chromosomes = new List <IChromosome>();
curLine++;
for (int i = 0; i < popSize; i++)
{
var ch = GANumChromosome.CreateFromString(lines[i + curLine]);
chromosomes.Add(ch);
}
if (factory != null)
{
factory.SetChromosomes(chromosomes);
factory.CalculatePopulation();
}
return(popSize == 0?2:popSize + curLine);
}
