Hello everybody,
I need to know how often every element in an hierarchical cluster was
"branched" - just imagine a watering pot on the top of the hierarchical
tree -> the leafs should get water according to the number of branches
that lie before them.
For example:
a <- list() # initialize empty object
a$merge <- matrix(c(-1, -2,
-3, -4,
1, 2,
-5,-6,
3,4), nc=2, byrow=TRUE )
a$height <- c(1, 2, 3,4,5)
a$order <- c(1,2,3,4,5,6)
a$labels <- 1:6
class(a) <- "hclust"
plot(a)
The leaf "1" has was branched three times -> it would get 1/2^3 = 0.125
of the "total water". Same for leaf 2.Leafs 3 and 4 would each get the
same (0.125). Leaf 5 and 6 would get 0.25 -> Adding up to 1.
Does anybody have a clue?
Thanks a lot in advance!
Lui
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