Accord.Genetic.GEPChromosome.MutateGene C# (CSharp) Method

        protected void MutateGene()
        {
            var rand = Generator.Random;

            // select random point of mutation
            int mutationPoint = rand.Next(length);

            if (mutationPoint < headLength)
            {
                // genes from head can be randomized freely (type may change)
                genes[mutationPoint].Generate();
            }
            else
            {
                // genes from tail cannot change their type - they
                // should be always arguments
                genes[mutationPoint].Generate(GPGeneType.Argument);
            }
        }