[R] cluster: "graph with circles"
Martin Maechler
maechler at stat.math.ethz.ch
Fri Nov 2 09:35:16 CET 2001
>>>>> "Ronaldo" == Ronaldo Reis <chrysopa at terra.com.br> writes:
Ronaldo> Hi,
Ronaldo> I have the graph below:
Ronaldo> | 422
Ronaldo> | 1 321
Ronaldo> | 1
Ronaldo> | 1
Ronaldo> |32 1
Ronaldo> |23
Ronaldo> |_______________________
Ronaldo> The numbers are points in coordinates (simplified graph). I
Ronaldo> need make a cluster analysis of this for identify groups and
Ronaldo> make a graph with this groups under circle. In R exist
Ronaldo> several packages for cluster analysis, but, which the package
Ronaldo> for this analysis and graphs?
As you note, there are many clustering algorithms available in R
package(mva) has hclust, kmeans,..
package(cluster) has agnes,diana,clara,...
[these two above should be available everywhere:
mva is `standard'; cluster is `recommended]
package(cclust)
package(e1071)
package(mclust)
and even more.
I don't understand ``make a graph with these(!) groups under circle''.
Maybe you mean Kaufman&Rousseeuw's ``clusplot'' (which use ellipses).
Try
library(cluster)
example(clusplot)
{where when interactive, you must use your mouse to identify interesting
points in the first plot}
Martin Maechler <maechler at stat.math.ethz.ch> http://stat.ethz.ch/~maechler/
Seminar fuer Statistik, ETH-Zentrum LEO D10 Leonhardstr. 27
ETH (Federal Inst. Technology) 8092 Zurich SWITZERLAND
phone: x-41-1-632-3408 fax: ...-1228 <><
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