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TRSGABits.Mutate(TGAProbability) Method

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Randomly mutates the bits in the object. The method steps through all of the bits of the object. For each bit, the Mutate method has a chance (based on the MutationProbability) to flip the bit, e.g., from True to False, or from False to True. If any bits are mutated, the method returns True.

Namespace: RSGeneticAlgorithm

Delphi

public
function Mutate( MutationProbability: TGAProbability ): Boolean;

Parameters

MutationProbability

Type: TGAProbability

Return Value

Type: Boolean

The following code modifies a child based on CrossOver, Mutation, and Inversion:

Delphi

procedure Reproduce(Parent1, Parent2, Child: TRSGAIndividual);
begin
      Child.Assign(Parent1);
      // crossover
      if (goCrossover in Operations) and (Random < CrossoverProbability) then
         Child.Crossover( Parent1, Parent2, Random(Child1.Bits.Size) );
      // mutate
      if goMutate in Operations then
        Child.Bits.Mutate(MutationProbability);
      // invert
      if (goInvert in Operations) and (Random < InversionProbability) then
         Child.Bits.Invert;
end;

Reference

•	RSGeneticAlgorithm.TRSGABits.CrossOver(TRSGABits,TRSGABits,Integer)

•	RSGeneticAlgorithm.TRSGABits.Invert(Integer,Integer)

•	RSGeneticAlgorithm.TRSGABits.Randomize

•

TRSGABits

•	RSGeneticAlgorithm

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