Accord.Controls.ScatterplotBox.GetRange C# (CSharp) Метод

        internal static bool GetRange(Func<double, double> source, out DoubleRange range)
        {
            ParameterInfo[] parameters = source.Method.GetParameters();
            ParameterInfo first = parameters[0];

            var obj = source.Target as IUnivariateDistribution;

            if (obj != null && source.Method.Name == "ProbabilityDensityFunction")
            {
                range = obj.Support;
                return true;
            }

            RangeAttribute[] attributes =
                (RangeAttribute[])first.GetCustomAttributes(typeof(RangeAttribute), false);

            if (attributes != null && attributes.Length > 0)
            {
                range = new DoubleRange((double)attributes[0].Minimum, (double)attributes[0].Maximum);
                return true;
            }

            range = new DoubleRange();
            return false;
        }
    }

        private static DataSeriesBox show(String title, Func <double, double> function, double?min, double?max, double?step, int?npoints)
        {
            if (min == null || max == null)
            {
                DoubleRange range;
                if (ScatterplotBox.GetRange(function, out range))
                {
                    min = range.Min;
                    max = range.Max;
                }
                else
                {
                    min = 0;
                    max = 1;
                }
            }

            if (npoints == null)
            {
                npoints = 1000;
            }

            if (step == null)
            {
                step = (max - min) / npoints;
            }

            double[] input  = Vector.Interval(min.Value, max.Value, step.Value);
            double[] output = Matrix.Apply(input, function);

            return(show(title, input, new[] { output }));
        }