[R] creating dendrogram from cluster hierarchy

[Timo Becker]

Dear R users,

I have created data for hierarchical agglomerative cluster analysis 
which consist of the merging pairs and the agglomeration heights, e.g. 
something like

my.merge <- matrix(c(-1,-2,-3,1), ncol=2, byrow=TRUE)
my.height <- c(0.5, 1)

I'd like to plot a corresponding dendrogram but I don't know how to 
convert my data to achieve this.
Is it possible to create a dendrogram object from a cluster hierarchy?

Thanks in advance,
Cheers,
Timo

-- 
Timo Becker
Phonetics
Austrian Academy of Sciences
Acoustics Research Institute