BiasCorrectQ.Utils.GetMeanSummaryHydrograph C# (CSharp) Method

        internal static List<Point> GetMeanSummaryHydrograph(List<Point> flow)
        {
            var rval = new List<Point> { };

            //initial new list to hold monthly values, index = month -1
            var monthData = new List<List<double>> { };
            for (int i = 0; i < 12; i++)
            {
            monthData.Add(new List<double> { });
            }

            //add monthly data
            foreach (var pt in flow)
            {
            monthData[pt.Date.Month - 1].Add(pt.Value);
            }

            //fill in rval with mean of month values, arbitrary dates of 10/1/1999 - 9/1/2000
            int[] wy_months = { 10, 11, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
            foreach (var month in wy_months)
            {
            int year = (month > 9) ? 1999 : 2000;
            rval.Add(new Point(new DateTime(year, month, 1),
                               monthData[month - 1].Average()));
            }

            return rval;
        }