public void Test_Mutation_Chain_Fluent()
{
var flip = new FlipMutation();
var random = new RandomMutation();
var gaussian = new GaussianMutation();
var chain = MutationChain.New(10)
.Add(() => flip, 0)
.Add(() => random, 4)
.Add(() => gaussian, 6);
Assert.Equal(flip, chain.Mutations.ElementAt(0));
Assert.Equal(random, chain.Mutations.ElementAt(1));
Assert.Equal(gaussian, chain.Mutations.ElementAt(2));
Assert.True(chain.Mutations.Count == 3);
}
public void Test_Mutation_Guassian()
{
int count = 0;
Func <double, double, double, double, double> stderr =
(double v, double mu, double s, double n) =>
{
return((v - mu) / s);
};
while (count < 10)
{
int length = Math.Probability.Sampling.GetUniform(10, 100);
int position = Math.Probability.Sampling.GetUniform(0, length - 1);
var gaussian1 = new GaussianMutation()
{
N = position
};
// compound
this.Test_Mutation(() => gaussian1, false, length, (p1, p2) =>
{
double z = stderr(p2.Sequence[position], p1.Sequence.Mean(), p1.Sequence.StdDev(), length);
bool result = (MATH.Abs(z / MATH.Sqrt(length)) < 0.5);
return(result);
}, (i) => Math.Probability.Sampling.GetNormal());
var gaussian2 = new GaussianMutation()
{
Compound = false, N = 5
};
// replacement
this.Test_Mutation(() => gaussian2, false, length, (p1, p2) =>
{
double z = stderr(p2.Sequence[position], p2.Sequence.Mean(), p2.Sequence.StdDev(), length);
bool result = (MATH.Abs(z) < 3.1);
return(result);
}, (i) => Math.Probability.Sampling.GetNormal());
count++;
}
}
public void Test_Mutation_Chain_Build()
{
MutationChain chain = new MutationChain(5);
var flip = new FlipMutation();
var random = new RandomMutation();
var gaussian = new GaussianMutation();
var chain1 = chain.Add(() => flip, 1);
var chain2 = chain1.Add(random);
var chain3 = chain2.Add(() => gaussian, 4);
Assert.DoesNotContain(flip, chain.Mutations);
Assert.Contains(flip, chain1.Mutations);
Assert.DoesNotContain(random, chain1.Mutations);
Assert.Contains(random, chain2.Mutations);
Assert.DoesNotContain(gaussian, chain2.Mutations);
Assert.Contains(gaussian, chain3.Mutations);
}
