> This set of data seems quite well conditioned. All the projections > into the best-fit planes give convex polygons, with their vertices > in the order given. The areas of the polygons range from 699 to 933. > A plot of the areas as a function of time makes it obvious that the > 264 points cover 3 beats of the heart. This can also be seen if you > view the polygons successively, as a movie.
How do the polygon area plots compare with the more simple area method (sum of triangles using computed centroid) ?