search for: plotclust

I am trying to load package fpc in order to use the 'plotcluster' function however everytime I attempt to do so I get the following warning message: > library(fpc) Loading required package: MASS Error: package 'MASS' could not be loaded In addition: Warning messages: 1: package 'fpc' was built under R version 2.9.2...

hi, is there some good summary on clustering methods in R? It seems there are many packages involving it. And I have two questions on clustering here: 1. Is there a way of evaluate the effecitives (or seperation) of clustering (rather than by visualization)? 2. Is there a search method (like genetic search) which can help find the best subset of attributes which gives best seperation? Thanks,

Hello, I have a large data matrix (68x13112), each row corresponding to one observation (patients) and each column corresponding to the variables (points within an NMR spectrum). I would like to carry out some kind of clustering on these data to see how many clusters are there. I have tried the function clara() from the package cluster. If I use the matrix as is, I can perform the clara