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This package was removed from CRAN on 2012-10-29. Its history is shown below.
Details below reflect version 1.1, its last release before removal.

phybase

1.1

Basic functions for phylogenetic analysis

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Overview

About
Maintained by Liang Liu1 releasesCRAN page ↗

This package provides functions to read, write, manipulate, estimate, and summarize phylogenetic trees including species trees which contain not only the topology and branch lengths but also population sizes. The input/output functions can read tree files in which trees are presented in parenthetic format. The trees are read in as a string and then transformed to a matrix which describes the relationship of nodes and branch lengths. The nodes matrix provides an easy access for developers to further manipulate the tree, while the tree string provides interface with other phylogenetic R packages such as "ape". The input/output functions can also be used to change the format of tree files between NEXUS and PHYLIP. Some basic functions have already been established in the package for manipulating trees such as deleting and swapping nodes, rooting and unrooting trees, changing the root of the tree. The package also includes functions such as "consensus", "coaltime, "popsize", "treedist" for summarizing phylogenetic trees, calculating the coalescence time, population size, and tree distance. The function maxtree is built in the package to esimtate the species tree from multiple gene trees.

Install

Health

CRAN checks

CRAN check results are not tracked yet.

Code health
None
Tests · ratio 0.00
not tracked
Coverage
2
Dependencies · direct

Documentation

Documentation
READMENoVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo
Examples that run
100%
Documented parameters
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Return-value docs
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References docs
16%

Downloads

phybase
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Dependencies

Declared dependencies
1 external dependency (excludes base and recommended)
Depends (2)
Matrixape
Imports (0)
none
LinkingTo (0)
none
Suggests (0)
none
Enhances (0)
none
Reverse dependencies
0direct
indirect (not tracked)

Nothing depends on this yet.

Code & Tests

People & History

People (1)
Other (1)
Contributor
Package Timeline

1 release. R releases are shown for context.

  • 1.1archived
    2012-10-29
  • R
    R 2.7.0 released · 2008-04-22
  • 1.1
    2008-03-25
  • R
    R 2.6.0 released · 2007-10-03

Package metadata

Total releases
1
License
GPL (>= 2) OSI
Bundled data
2.6 KB / 3 files
Download size
not tracked yet
Installed size
not tracked yet
With dependencies
not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("phybase")
Liu, L. (n.d.). phybase: Basic functions for phylogenetic analysis (Version 1.1) [Computer software]. Retrieved August 15, 2026, from https://CRAN.R-project.org/package=phybase

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

APA

Balamuta, J. J. (2026). R Observatory: Metrics for phybase version 1.1 [Data set]. HJJB, LLC. Data release v2026-08-15. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-15, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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