Function() public method

Cauchy Kernel Function
public Function ( double z ) : double
z double Distance z in input space.
return double
Cauchy Class Documentation
Example #1
0
        public void FunctionTest()
        {
            Cauchy dense = new Cauchy(3.6);
            SparseCauchy target = new SparseCauchy(3.6);

            double[] sx = { 1, -0.555556, 2, +0.250000, 3, -0.864407, 4, -0.916667 };
            double[] sy = { 1, -0.666667, 2, -0.166667, 3, -0.864407, 4, -0.916667 };
            double[] sz = { 1, -0.944444, 3, -0.898305, 4, -0.916667 };

            double[] dx = { -0.555556, +0.250000, -0.864407, -0.916667 };
            double[] dy = { -0.666667, -0.166667, -0.864407, -0.916667 };
            double[] dz = { -0.944444, +0.000000, -0.898305, -0.916667 };

            double expected, actual;

            expected = dense.Function(dx, dy);
            actual = target.Function(sx, sy);
            Assert.AreEqual(expected, actual);

            expected = dense.Function(dx, dz);
            actual = target.Function(sx, sz);
            Assert.AreEqual(expected, actual);

            expected = dense.Function(dy, dz);
            actual = target.Function(sy, sz);
            Assert.AreEqual(expected, actual);
        }