public void IdentityLinkFunctionConstructorTest()
{
IdentityLinkFunction target = new IdentityLinkFunction();
Assert.AreEqual(0, target.A);
Assert.AreEqual(1, target.B);
for (int i = 0; i < 10; i++)
{
Assert.AreEqual(i, target.Function(i));
Assert.AreEqual(i, target.Inverse(i));
Assert.AreEqual(1, target.Derivative(i));
Assert.AreEqual(1, target.Derivative(i));
}
}
public void IdentityLinkFunctionConstructorTest1()
{
double mean = 3.14;
double variance = 2.91;
IdentityLinkFunction target = new IdentityLinkFunction(variance, mean);
Assert.AreEqual(mean, target.A);
Assert.AreEqual(variance, target.B);
for (int i = 0; i < 10; i++)
{
Assert.AreEqual((i - mean) / variance, target.Function(i), 1e-10);
Assert.AreEqual(i, target.Inverse((i - mean) / variance), 1e-10);
Assert.AreEqual(variance, target.Derivative(i));
Assert.AreEqual(variance, target.Derivative(i));
}
}