Accord.Statistics.Distributions.Univariate.MannWhitneyDistribution.USample1 C# (CSharp) Method

USample1() public static method

Gets the Mann-Whitney's U statistic for the first sample.
public static USample1 ( double rank1, int n2 ) : double
rank1 double
n2 int
return double
        public static double USample1(double[] rank1, int n2)
        {
            int n1 = rank1.Length;
            double t1 = rank1.Sum();
            double t1max = n1 * n2 + (n1 * (n1 + 1)) / 2.0;
            double u1 = t1max - t1;
            return u1;
        }