From: Klaus Schliep [klaus.schl...@gmail.com]
Sent: December 7, 2012 5:16 PM
To: Kelly Burkett
Cc: r-sig-phylo@r-project.org
Subject: Re: [R-sig-phylo] issue with cophenetic.phylo()
Hi Kelly,
where is the problem? This happens if you work with floating point numbers
Hi Everyone,
I have been using the cophenetic.phylo() function and I have been
having some issues with pairs of tips having distances that are
different than what I would expect.
The following code illustrates the issue (I have set the seed in
order to reproduce these results). I generate a tree
Hi Kelly,
where is the problem? This happens if you work with floating point numbers.
There is a nice link on the developer.r-project on the topic
www.validlab.com/goldberg/paper.pdf
The value is on my machine actually the same as
.Machine$double.eps
[1] 2.220446e-16
which is the smallest
