Hi. This is because your tree is not fully dichotomous.
> tree<-read.nexus(file="tree.nex")
> is.binary.tree(tree)
[1] FALSE
You can resolve multifurcations with branches of zero length using
multi2di(), e.g.:
> tree<-multi2di(tree)
> is.binary.tree(tree)
[1] TRUE
Hope this helps. - Liam
--
Liam J. Revell
University of Massachusetts Boston
web: http://faculty.umb.edu/liam.revell/
email: liam.rev...@umb.edu
blog: http://phytools.blogspot.com
On 7/11/2011 10:44 PM, ???? wrote:
dear all,
I have a question when I used the pic funtion, it appeared an
error:"'phy' is not rooted and fully dichotomous", I don't understand
what's the problem, the attached file is my phylogenetic information,
please check it, I am sorry to trouble you all, but I really want to
solve this problem in my study, thanks a lot.
best wishes to you all!
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