Re: [R] cluster in R

From: Christian Hennig <chrish_at_stats.ucl.ac.uk>
Date: Wed 18 Oct 2006 - 12:15:55 GMT

Dear Weiwei,

> 1. Is there a way of evaluate the effecitives (or seperation) of
> clustering (rather than by visualization)?

The function cluster.stats in package fpc computes several cluster validation statistics (among them the average silhouette width). Function clusterboot in the same package (recent version) assesses cluster stability. There are several interfaces to clustering methods implemented in R which are documented on the help page of kmeansCBI (which gives you kind of an overview of available "general purpose" clustering methods in R though I may have missed some).
There are also several methods for the visualization of separation (I know that you didn't ask for that) for which the function plotcluster is an interface.

Best,
Christian


R-help@stat.math.ethz.ch 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. Received on Wed Oct 18 22:35:02 2006

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.1.8, at Wed 18 Oct 2006 - 16:30:10 GMT.

Mailing list information is available at https://stat.ethz.ch/mailman/listinfo/r-help. Please read the posting guide before posting to the list.