public RegressionCalculator(FunctionMatrices matrices, int number, bool isPolynomial, int degree)
{
NumberOfXVariables = number;
Matrices = matrices;
IsFunctionPolynomial = isPolynomial;
FunctionDegree = degree;
}
static void Main(string[] args)
{
// single.txt: C = 7.1594; B = { 3.1000; } Y(400) = 1247.2; (works)
// multi.txt: C = 1.0441; B = { 0.1000; 11.100; 5.2001; 4.4000; } (works)
// poly.txt: C = 61005.0; B = { 5.6097; -0.031; 2.0968; -1.099; } (works)
string filePath = AskUserForFileName();
bool isPolynomial;
List <double> Y = new List <double>();
List <List <double> > XColumns = new List <List <double> >();
ReadDataIntoLists(filePath, XColumns, Y);
if (XColumns.Count > 1)
{
isPolynomial = false;
}
else
{
isPolynomial = true;
}
int degree = 1;
RegressionCalculator calculator;
Results results = new Results();
do
{
FunctionMatrices matrices = new FunctionMatrices(XColumns, Y, isPolynomial, degree);
calculator = new RegressionCalculator(matrices, XColumns.Count, isPolynomial, degree);
calculator.CalculateRegression();
var lastParameter = calculator.B[calculator.B.RowCount - 1, 0];
if (lastParameter < 0.01 && lastParameter > -0.01)
{
break;
}
results = new Results(calculator.B, calculator.C);
degree++;
}while (isPolynomial);
degree--;
results.DisplayRegressionInfo(isPolynomial, degree, calculator);
}