MissionPlanner.MagCalib.RemoveOutliers C# (CSharp) Method

        static void RemoveOutliers(ref List<Tuple<float, float, float>> data)
        {
            // remove outlyers
            data.Sort(
                delegate(Tuple<float, float, float> d1, Tuple<float, float, float> d2)
                {
                    // get distance from 0,0,0
                    double ans1 = Math.Sqrt(d1.Item1*d1.Item1 + d1.Item2*d1.Item2 + d1.Item3*d1.Item3);
                    double ans2 = Math.Sqrt(d2.Item1*d2.Item1 + d2.Item2*d2.Item2 + d2.Item3*d2.Item3);
                    if (ans1 > ans2)
                        return 1;
                    if (ans1 < ans2)
                        return -1;
                    return 0;
                }
                );

            data.RemoveRange(data.Count - (data.Count/16), data.Count/16);
        }