On Jun 29, 2009, at 9:04 AM, nfantone wrote:
I really see no harm (algorithmically and conceptually) in returning the center as the centroid if there's only one point added to the cluster. If that's what you need to solve your predicament, I say go for it. Are there any drawbacks?
Yeah, I don't see any, but need to run the tests. Obviously, someone thought otherwise, so it would be good to know the reasoning.
What eludes me is the actual way of adding points. How can I compute its total set at any given moment? Say, I create a Cluster with a center, then add some points - the addPoint() just stores a pointTotal Vector with the total vector sum- and want to check which vectors I have added so far with their original values. Is this even possible?
AFAICT, no, but I'm sure that is by design, otherwise you would be carrying around a lot of vectors and I doubt it would scale. I think the final Clustering step takes care of associating the points to the centroids.
-Grant
