public void Gaussian_Membership()
{
Subset a = new Gaussian(3.0, 2.0);
Assert.AreEqual(1.0, a.membership(3.0), "Invalid mode point");
Assert.AreEqual(Math.Exp(-0.5), a.membership(1.0), "Invalid left point");
Assert.AreEqual(Math.Exp(-2), a.membership(7.0), "Invalid left point");
}
public GaussianClassifier(string[] names,
double begin=0.0, double end=1.0,
string name="",
bool edge=false, double cross=1.0)
{
this.Domain = new Domains.RationalRange(begin, end);
double wide, step, p;
if (names.Length<2) {
throw new ArgumentException();
}
if (!edge) {
wide = (end-begin)*cross / (2*(names.Length+1));
step = (end-begin) / (names.Length + 1);
p = begin + (end-begin) / (names.Length + 1);
}
else {
wide = (end-begin)*cross / (names.Length*2 - 2);
step = (end-begin) / (names.Length - 1);
p = begin;
}
// Console.WriteLine("Gaussian classifier ctor");
// Console.WriteLine("edge={0}, cross={1}, begin={2}, end={3}, n={4}", edge, cross, begin, end, names.Length);
// Console.WriteLine("wide={0}, step={1}, p={2}", wide, step, p);
foreach (string term in names) {
this[term] = new Gaussian(p, wide/3.0);
p+=step;
}
}
public void Gaussian_Centroid()
{
Subset a = new Gaussian(3.0, 2.0);
Assert.AreEqual(3.0, a.centroid(), "Invalid gaussian centriod");
}
public void Gaussian_Boundaries()
{
Subset a = new Gaussian(3.0, 2.0);
Assert.AreEqual(-7.0, a.Domain.begin, "Invalid begin point");
Assert.AreEqual(13.0, a.Domain.end, "Invalid end point");
}