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\name{read.caic}
\alias{read.caic}
\title{Read Tree File in CAIC Format}
\description{
This function reads one tree from a CAIC file.
A second file containing branch lengths values may also be passed (experimental).
}
\usage{
read.caic(file, brlen = NULL, skip = 0, comment.char = "#", ...)
}
\arguments{
\item{file}{a file name specified by either a variable of mode character, or a double-quoted string.}
\item{brlen}{a file name for the branch lengths file.}
\item{skip}{the number of lines of the input file to skip before beginning to read data (this is passed directly to scan()).}
\item{comment.char}{a single character, the remaining of the line after this character is ignored (this is passed directly to scan()).}
\item{\dots}{Further arguments to be passed to scan().}
}
\details{
Read a tree from a file in the format used by the CAIC and MacroCAIc program.
}
\value{
an object of class \code{"phylo"}.
}
\references{
Purvis, A. and Rambaut, A. (1995) Comparative analysis by independent
contrasts (CAIC): an Apple Macintosh application for analysing
comparative data. \emph{CABIOS}, \bold{11} :241--251.
}
\author{Julien Dutheil \email{dutheil@evolbio.mpg.de}}
\section{Warning}{The branch length support is still experimental and was not fully tested.}
\seealso{ \code{\link{read.tree}}, \code{\link{read.nexus}} }
\examples{
### The same example than in read.tree, without branch lengths.
### An extract from Sibley and Ahlquist (1990)
cat("AAA","Strix_aluco","AAB","Asio_otus",
"AB","Athene_noctua","B","Tyto_alba",
file = "ex.tre", sep = "\n")
tree.owls <- read.caic("ex.tre")
plot(tree.owls)
tree.owls
unlink("ex.tre") # delete the file "ex.tre"
}
\keyword{hplot}
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