Calculates the median - CSharp System

CSharp examples for System:Math Statistics

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Description

Calculates the median

Demo Code

// Permission is hereby granted, free of charge, to any person obtaining a copy
using System.Linq;
using System.Collections.Generic;
using System;//from   www . j  ava 2 s.c om

public class Main{
        /// <summary>
        /// Calculates the median
        /// </summary>
        /// <param name="numbers">Double-values</param>
        /// <returns>Median</returns>
        public static double Median(List<double> numbers)
        {
            if (numbers != null && numbers.Count > 0)
            {
                if (numbers.Count() % 2 == 0)
                {
                    return numbers.OrderBy(_ => _).Skip(numbers.Count() / 2 - 1).Take(2).Sum() / 2;
                }
                return numbers.OrderBy(_ => _).ElementAt(Convert.ToInt32(Math.Floor((Convert.ToDouble(numbers.Count()) / 2))));
            }

            throw new ArgumentException("Numbers are null or 0", "numbers");
        }
}

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