C# (CSharp) System.Collections.ArrayList.ElementAt Examples

Example #1

File: IEnumerableExtensions.FrequencyCounter.cs Project: katodix/HolisticWare.Core.Math.Statistics.Descriptive.Sequential

        public static Dictionary <object, uint> FrequencyCounter(this System.Collections.ArrayList x)
        {
            long n = x.Count;

            Dictionary <object, uint> frequencies = new Dictionary <object, uint>((int)n);

            //for (int i = 0; i < n; i++)
            System.Threading.Tasks.Parallel.For
            (
                0,
                n,
                i =>
            {
                object x_i = x.ElementAt((int)i);
                if (frequencies.ContainsKey(x_i))
                {
                    frequencies[x_i] += 1;
                }
                else
                {
                    frequencies.Add(x_i, 1);
                }
            }
            );

            return(frequencies);
        }