CSMSL.Util.LinearRegression.GetY C# (CSharp) Метод

        public double GetY(double x)
        {
            return Slope*x + Intercept;
        }

        public static LinearRegression Calculate(double[,] xy)
        {
            int    length = xy.GetLength(0);
            double yAvg, sxy, sxx, syy, sserr;
            double xAvg = yAvg = sxy = sxx = syy = sserr = 0;

            for (int i = 0; i < length; i++)
            {
                xAvg += xy[i, 0];
                yAvg += xy[i, 1];
            }
            xAvg /= length;
            yAvg /= length;

            for (int i = 0; i < length; i++)
            {
                double xdiff = xy[i, 0] - xAvg;
                double ydiff = xy[i, 1] - yAvg;
                sxy += xdiff * ydiff;
                sxx += xdiff * xdiff;
                syy += ydiff * ydiff;
            }
            double           m          = sxy / sxx;
            double           b          = yAvg - m * xAvg;
            LinearRegression regression = new LinearRegression(m, b);

            for (int i = 0; i < length; i++)
            {
                sserr += Math.Pow(xy[i, 1] - regression.GetY(xy[i, 0]), 2);
            }
            regression.RSquared = 1 - (sserr / syy);
            return(regression);
        }