auc                     Area Under the Curve
curvature               Curvature
direction_changes       xFlips
index_max_acceleration
                        Time point of maximum acceleration
index_max_velocity      Time point of maximum velocity
interp2                 Interpolation aka Time-Normalization
is_monotonic            Test if vector is monotonically in-/decreasing
is_monotonic_along_ideal
                        Test if vector is monotonically increasing
                        along the ideal trajectory
max_ad                  (signed) Maximum Absolute Deviation
point_crosses           Number of times a point is crossed
sampen                  Sample entropy
starting_angle          Starting angle
time_circle_entered     Completion Time
time_circle_left        Initiation Time
