ape: write.tree – R documentation

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ape

write.tree

Write Tree File in Parenthetic Format

Description

This function writes in a file a tree in parenthetic format using the Newick (also known as New Hampshire) format.

Usage

write.tree(phy, file = "", append = FALSE,
           digits = 10, tree.names = FALSE)

Arguments

`phy`	an object of class `"phylo"` or `"multiPhylo"`.
`file`	a file name specified by either a variable of mode character, or a double-quoted string; if `file = ""` (the default) then the tree is written on the standard output connection (i.e. the console).
`append`	a logical, if `TRUE` the tree is appended to the file without erasing the data possibly existing in the file, otherwise the file (if it exists) is overwritten (`FALSE` the default).
`digits`	a numeric giving the number of digits used for printing branch lengths.
`tree.names`	either a logical or a vector of mode character. If `TRUE` then any tree names will be written prior to the tree on each line. If character, specifies the name of `"phylo"` objects which can be written to the file.

Details

The node labels and the root edge length, if available, are written in the file.

If tree.names == TRUE then a variant of the Newick format is written for which the name of a tree precedes the Newick format tree (parentheses are eventually deleted beforehand). The tree names are taken from the names attribute if present (they are ignored if tree.names is a character vector).

The tip labels (and the node labels if present) are checked before being printed: the leading and trailing spaces, and the leading left and trailing right parentheses are deleted; the other spaces are replaced by underscores; the commas, colons, semicolons, and the other parentheses are replaced with dashes.

Value

a vector of mode character if file = "", none (invisible NULL) otherwise.

Author(s)

Emmanuel Paradis, Daniel Lawson dan.lawson@bristol.ac.uk, and Klaus Schliep kschliep@snv.jussieu.fr

References

Felsenstein, J. The Newick tree format. http://evolution.genetics.washington.edu/phylip/newicktree.html

Olsen, G. Interpretation of the "Newick's 8:45" tree format standard. http://evolution.genetics.washington.edu/phylip/newick_doc.html

Emmanuel Paradis [aut, cre, cph] (<https://orcid.org/0000-0003-3092-2199>), Simon Blomberg [aut, cph] (<https://orcid.org/0000-0003-1062-0839>), Ben Bolker [aut, cph] (<https://orcid.org/0000-0002-2127-0443>), Joseph Brown [aut, cph] (<https://orcid.org/0000-0002-3835-8062>), Santiago Claramunt [aut, cph] (<https://orcid.org/0000-0002-8926-5974>), Julien Claude [aut, cph] (<https://orcid.org/0000-0002-9267-1228>), Hoa Sien Cuong [aut, cph], Richard Desper [aut, cph], Gilles Didier [aut, cph] (<https://orcid.org/0000-0003-0596-9112>), Benoit Durand [aut, cph], Julien Dutheil [aut, cph] (<https://orcid.org/0000-0001-7753-4121>), RJ Ewing [aut, cph], Olivier Gascuel [aut, cph], Thomas Guillerme [aut, cph] (<https://orcid.org/0000-0003-4325-1275>), Christoph Heibl [aut, cph] (<https://orcid.org/0000-0002-7655-3299>), Anthony Ives [aut, cph] (<https://orcid.org/0000-0001-9375-9523>), Bradley Jones [aut, cph] (<https://orcid.org/0000-0003-4498-1069>), Franz Krah [aut, cph] (<https://orcid.org/0000-0001-7866-7508>), Daniel Lawson [aut, cph] (<https://orcid.org/0000-0002-5311-6213>), Vincent Lefort [aut, cph], Pierre Legendre [aut, cph] (<https://orcid.org/0000-0002-3838-3305>), Jim Lemon [aut, cph], Guillaume Louvel [aut, cph] (<https://orcid.org/0000-0002-7745-0785>), Eric Marcon [aut, cph] (<https://orcid.org/0000-0002-5249-321X>), Rosemary McCloskey [aut, cph] (<https://orcid.org/0000-0002-9772-8553>), Johan Nylander [aut, cph], Rainer Opgen-Rhein [aut, cph], Andrei-Alin Popescu [aut, cph], Manuela Royer-Carenzi [aut, cph], Klaus Schliep [aut, cph] (<https://orcid.org/0000-0003-2941-0161>), Korbinian Strimmer [aut, cph] (<https://orcid.org/0000-0001-7917-2056>), Damien de Vienne [aut, cph] (<https://orcid.org/0000-0001-9532-5251>)

Initial release

2021-04-24