Dear R help,
I am trying to cluster my data according to "group" in a data frame such as
the following:
df=data.frame(group=rep(c("a","b","c","d"),10),(replicate(100,rnorm(40))))
I'm not sure how to tell hclust() that I want to cluster according to the
group variable. For example:
dfclust=hclust(dist(df),"ave")
plot(dfclust)
Clusters according to each individual row. What I'm looking for is an
unrooted tree that will show similarity/dissimilarity among groups
according to the data set as a whole.
I appreciate the help,
MO
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