[R] cluster analysis: mean values for each variable and cluster

[jgaspard]

Hi all!

I'm new to R and don't know many about it. Because it is free, I managed to
learn it a little bit.

Here is my problem: I did a cluster analysis on 30 observations and 16
variables (monde, figaro, liberation, etc.). Here is the .txt data file:

"monde","figaro","liberation","yespeople","nopeople","bxl","europe","ue","union_eur","other","yesmeto","nometo","yesfonc","nofonc","yestone","notone"
1,0,0,0,1,0,0,0,1,0,0,1,1,0,1,0
1,0,0,0,1,0,0,0,1,0,0,1,1,0,1,0
1,0,0,0,1,0,0,0,1,0,1,0,1,0,1,0
0,1,0,0,1,0,0,0,1,0,0,1,1,0,0,1
1,0,0,0,1,0,0,0,1,0,0,1,1,0,0,1
1,0,0,0,1,0,0,0,0,1,0,1,1,0,1,0
1,0,0,0,1,0,0,0,0,1,0,1,1,0,1,0
1,0,0,0,1,0,0,0,1,0,0,1,0,1,1,0
0,1,0,0,1,0,0,0,1,0,0,1,0,1,1,0
0,1,0,0,1,0,0,0,0,1,0,1,0,1,1,0
1,0,0,0,1,0,1,0,0,0,0,1,0,1,0,1
0,1,0,0,1,0,0,1,0,0,0,1,1,0,1,0
0,0,1,0,1,0,0,1,0,0,0,1,0,1,1,0
1,0,0,0,1,0,0,1,0,0,0,1,0,1,1,0
0,1,0,0,1,0,0,0,1,0,0,1,1,0,1,0
0,0,1,0,1,0,0,1,0,0,0,1,0,1,1,0
0,1,0,1,0,0,1,0,0,0,0,1,0,1,1,0
0,1,0,0,1,1,0,0,0,0,1,0,0,1,1,0
0,1,0,0,1,1,0,0,0,0,1,0,0,1,1,0
0,1,0,0,1,1,0,0,0,0,1,0,0,1,1,0
0,1,0,0,1,1,0,0,0,0,1,0,0,1,1,0
0,1,0,0,1,1,0,0,0,0,1,0,0,1,0,1
0,1,0,0,1,1,0,0,0,0,1,0,1,0,1,0
0,1,0,0,1,1,0,0,0,0,1,0,1,0,1,0
0,1,0,0,1,1,0,0,0,0,1,0,1,0,1,0
0,1,0,0,1,1,0,0,0,0,1,0,1,0,1,0
0,1,0,0,1,1,0,0,0,0,1,0,1,0,1,0
0,1,0,0,1,1,0,0,0,0,1,0,1,0,1,0
0,1,0,0,1,1,0,0,0,0,1,0,1,0,1,0
1,0,0,0,1,1,0,0,0,0,1,0,1,0,1,0


The steps I made were those:

headlines=read.table("/data.csv", header=T, sep=",")
data
dist=dist(data,method="euclidean")
dist
cluster=hclust(dist,method="ward")
cluster
plot(cluster)
rect.hclust(cluster, k=4, border="red")

I extracted 4 clusters from the data. My question is: is it possible to
produce a summary of every mean values for each variable of each of the 4
clusters?

Thanks a lot in advance,

Jeoffrey




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