public void TestClone()
{
var f = new ActivationFunctions.Sigmoid(2.3);
Assert.AreEqual(f, f.Clone());
Assert.AreNotSame(f, f.Clone());
}
public void TestMutate()
{
var f = new ActivationFunctions.Sigmoid(1);
var r = MockRandom(.7);
f.Mutate(r, new FunctionParameters(0, new Parameter(0, 0, .3)));
Assert.AreEqual(new ActivationFunctions.Sigmoid(1.12), f);
}
public void TestNormal()
{
var f = new ActivationFunctions.Sigmoid(1);
Assert.AreEqual(1 / (1 + Math.Exp(-3)), f.GetActivation(3), Delta);
}
public void TestScaledReversed()
{
var f = new ActivationFunctions.Sigmoid(-5);
Assert.AreEqual(1 / (1 + Math.Exp(5 * 6)), f.GetActivation(6), Delta);
}
public void TestScaled()
{
var f = new ActivationFunctions.Sigmoid(7);
Assert.AreEqual(1 / (1 + Math.Exp(-7 * 2)), f.GetActivation(2), Delta);
}
