[R] k- means cluster analysis
ripley at stats.ox.ac.uk
Thu Feb 13 07:47:03 CET 2003
On Wed, 12 Feb 2003, Sundar Dorai-Raj wrote:
> Ngayee J Law wrote:
> > Hi all,
> > I am trying to run the k-means cluster analysis using the function kmeans
> > in the package cluster.
I think it's the one in package mva.
> However, choosing bad starting values could cause kmeans to crash, as in:
> kmeans(x, centers = c(0, 0))
Really? That does not crash here, but correctly reports an error message:
> kmeans(x, c(0,0))
Error in switch(Z$ifault, stop("empty cluster: try a better set of initial
empty cluster: try a better set of initial centers
If you actually have a crash, please report to R-bugs.
There is an increasing trend for people to describe informative error
messages describing their errors as `crashes', but that is confusing at
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
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