Accord.Statistics.Distributions.Univariate.WilcoxonDistribution.WNegative C# (CSharp) Method

WNegative() public static method

Computes the Wilcoxon's W- statistic.
The W- statistic is computed as the sum of all negative signed ranks.
public static WNegative ( int signs, double ranks ) : double
signs int
ranks double
return double
        public static double WNegative(int[] signs, double[] ranks)
        {
            double sum = 0;
            for (int i = 0; i < signs.Length; i++)
                if (signs[i] < 0)
                    sum += ranks[i];
            return sum;
        }