Dear list,
I'm trying to convert a phylo object into a dendrogram object with
little success. host.tree is a rooted ultrametric tree with polytomies
stored as phylo object. The polytomies can be resolved to produce a
binary tree and this can be coerced into a hclust object:
h.d<-as.hclust(multi2di(host.tree))
However when converted to a dendrogram using as.dendrogram(h.d) the
dendrogram appears broken. str(as.dendrogram(h.d)) returns:
--[dendrogram w/ 2 branches and members at h = 96.1]
|--[dendrogram w/ 2 branches and members at h = 82.8]
| |--[dendrogram w/ 2 branches and members at h = 70.3]
| | |--[dendrogram w/ 2 branches and members at h = 39]
| | | |--[dendrogram w/ 2 branches and members at h = 24.5]
Error in class(val) <- cl : attempt to set an attribute on NULL
I have given the zero branch lengths from the polytomies non-zero
branch lengths, but this does not seem to work either.
Any help would be gratefully received.
Jarrod Hadfield
--
The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.
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