I like seeing the functional style in an object oriented language. Gabe's hit-and-run comment seems a little juvenile, since we choose our tools based on our project. The nice thing seems to be that every time I pick up a tool, both me and my code get better. I've "borrowed" this code wholesale for a while. I want to play around with it and make it my own. I thought I'd refactor a KMeans implementation with this kind of style. I hope that doesn't walk on your toes, Dave. Thanks for your constant contribution.