/// <summary>
/// Creates a new linear regression directly from data points.
/// </summary>
///
/// <param name="x">The input vectors <c>x</c>.</param>
/// <param name="y">The output vectors <c>y</c>.</param>
///
/// <returns>A linear regression f(x) that most approximates y.</returns>
///
public static MultipleLinearRegression FromData(double[][] x, double[] y)
{
var regression = new MultipleLinearRegression(x[0].Length);
regression.Regress(x, y);
return(regression);
}
/// <summary>
/// Creates a new Simple Linear Regression of the form y = Ax + B.
/// </summary>
///
public SimpleLinearRegression()
{
this.regression = new MultipleLinearRegression(2);
}
/// <summary>
/// Creates a new Polynomial Linear Regression.
/// </summary>
///
/// <param name="degree">The degree of the polynomial used by the model.</param>
///
public PolynomialRegression(int degree)
{
// degree plus the independent constant
regression = new MultipleLinearRegression(degree + 1);
}