Example: Linear Regression

import com.imsl.stat.*;

public class LinearRegressionEx1 {
    public static void main(String args[]) {
        // y = 4*x0 + 3*x1
        LinearRegression r = new LinearRegression(2, false);
        double c[] = {4, 3};
        double x[][] = {{1, 5},{0, 2},{-1, 4}};
        
        r.update(x[0],  1*c[0]+5*c[1]);
        r.update(x[1],  0*c[0]+2*c[1]);
        r.update(x[2], -1*c[0]+4*c[1]);
        double coef[] = r.getCoefficients();
        System.out.println("The computed regression coefficients are {" +
        coef[0] + ", " + coef[1] + "}");
    }
}

Output

The computed regression coefficients are {4.0, 3.0}