private double[] point(double[] arr, int CountInterval)
{
double max = DiscriptiveStatistics.Max(arr);
double min = DiscriptiveStatistics.Min(arr);
double[] points = new double[CountInterval + 1];
for (int i = 0; i < points.Length; i++)
{
points[i] = max - i * (max - min) / CountInterval;
}
return(points.OrderBy(x => x).ToArray());
}
private double[] theoretical_freq(double[] arr, double sum, double[] xn, int CountInterval)
{
double X_aver = DiscriptiveStatistics.Average(arr);
double disp = Math.Sqrt(DiscriptiveStatistics.Dispersion(arr));
double[] m_t = new double[CountInterval];
double h = (DiscriptiveStatistics.Max(arr) - DiscriptiveStatistics.Min(arr)) / CountInterval;
for (int i = 0; i < m_t.Length; i++)
{
double u = (xn[i] - X_aver) / disp;
double f_u = 1 / (Math.Sqrt(2 * Math.PI) * Math.Pow(Math.E, (u * u) / 2));
m_t[i] = sum * h / disp * f_u;
}
return(m_t);
}