Hello, I'm looking for a function that groups elements below a certain distance threshold, based on a distance matrix. In other words, I'd like to group samples without using a standard clustering algorithm on the distance matrix. For example, let the distance matrix be :
A B C D A 0 0.03 0.77 1.12 B 0.03 0 1.59 1.11 C 0.77 1.59 0 0.09 D 1.12 1.11 0.09 0 Two clusters would be found with a cutoff of 0.1. The first contains A,B. The second has C,D. Is there an efficient function that does this ? I can think of how to do this recursively, but am hoping it's already been considered. -------------------------------------- Dario Strbenac PhD Student University of Sydney Camperdown NSW 2050 Australia ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.