/// <inheritdoc />
public void PerformOperation(EncogRandom rnd, IGenome[] parents,
int parentIndex, IGenome[] offspring,
int offspringIndex)
{
var program = (EncogProgram)parents[0];
EncogProgramContext context = program.Context;
EncogProgram result = context.CloneProgram(program);
MutateNode(rnd, result.RootNode);
offspring[0] = result;
}
/// <inheritdoc />
public void PerformOperation(EncogRandom rnd, IGenome[] parents,
int parentIndex, IGenome[] offspring,
int offspringIndex)
{
var parent1 = (EncogProgram)parents[0];
var parent2 = (EncogProgram)parents[1];
offspring[0] = null;
EncogProgramContext context = parent1.Context;
int size1 = parent1.RootNode.Count;
int size2 = parent2.RootNode.Count;
bool done = false;
int tries = 100;
while (!done)
{
int p1Index = rnd.Next(size1);
int p2Index = rnd.Next(size2);
var holder1 = new LevelHolder(p1Index);
var holder2 = new LevelHolder(p2Index);
IList <EPLValueType> types = new List <EPLValueType>();
types.Add(context.Result.VariableType);
FindNode(rnd, parent1.RootNode, types, holder1);
FindNode(rnd, parent2.RootNode, types, holder2);
if (LevelHolder.CompatibleTypes(holder1.Types,
holder2.Types))
{
EncogProgram result = context.CloneProgram(parent1);
ProgramNode resultNode = parent1.FindNode(p1Index);
ProgramNode p2Node = parent2.FindNode(p2Index);
ProgramNode newInsert = context.CloneBranch(result,
p2Node);
result.ReplaceNode(resultNode, newInsert);
offspring[0] = result;
done = true;
}
else
{
tries--;
if (tries < 0)
{
done = true;
}
}
}
}
/// <inheritdoc />
public void PerformOperation(EncogRandom rnd, IGenome[] parents,
int parentIndex, IGenome[] offspring,
int offspringIndex)
{
var program = (EncogProgram)parents[0];
EncogProgramContext context = program.Context;
EncogProgram result = context.CloneProgram(program);
IList <EPLValueType> types = new List <EPLValueType>();
types.Add(context.Result.VariableType);
var globalIndex = new int[1];
globalIndex[0] = rnd.Next(result.RootNode.Count);
FindNode(rnd, result, result.RootNode, types, globalIndex);
offspring[0] = result;
}