Hi there,
I use cluster.stats to test which cluster is better, for example:
library(fpc)
data(xclara)
a3 <- clara(xclara, 3)
a4 <- clara(xclara, 4)
d <- dist(xclara)
val1 <- cluster.stats(d, a3$clust)
val2 <- cluster.stats(d, a4$clust)
barplot(c(val1$avg, val2$avg))
Which value in the output of cluster.stats can tell us 3 cluster is
better than 4?
I also try to test "kmeans" method with "clara" method by using
cluster.stats. The same problem shows up.
Thank you!
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