public void SolveLinearFunctionViaInterface()
{
List <double> x;
List <double> y;
ConvertXYDataToArrays(CalculateLine(), out x, out y);
var regression = new AlglibRegression();
var coeffs = new double[2];
//initial conditions
coeffs[0] = 2;
coeffs[1] = 2;
var worked = regression.Fit(x, y, BasisFunctionsEnum.Linear, ref coeffs);
Assert.AreEqual(5, coeffs[0], .0001);
Assert.AreEqual(0, coeffs[1], .0001);
Assert.AreEqual(true, worked.DidConverge);
}
public void SolveQuadraticFunctionViaInterface()
{
List <double> x;
List <double> y;
ConvertXYDataToArrays(CalculatedParabola(), out x, out y);
var regression = new AlglibRegression();
var coeffs = new double[3];
//initial conditions
coeffs[0] = 1;
coeffs[1] = 1;
coeffs[2] = 1;
var worked = regression.Fit(x, y, BasisFunctionsEnum.PolynomialQuadratic, ref coeffs);
Assert.AreEqual(-0.99999999960388553d, coeffs[0], .000001);
Assert.AreEqual(2.410211171560969E-10d, coeffs[1], .000001);
Assert.AreEqual(99.999999976322613d, coeffs[2], .000001);
Assert.AreEqual(true, worked.DidConverge);
}