make_mrbayes_tree: Take a constraint tree and use mrBayes to get node ages and...

In datelife: Scientific Data on Time of Lineage Divergence for Your Taxa

Take a constraint tree and use mrBayes to get node ages and branch lengths given a set of node calibrations without any data.

Description

Take a constraint tree and use mrBayes to get node ages and branch lengths given a set of node calibrations without any data.

Usage

make_mrbayes_tree(
  constraint = NULL,
  taxa = NULL,
  ncalibration = NULL,
  missing_taxa = NULL,
  age_distribution = "fixed",
  root_calibration = FALSE,
  mrbayes_output_file = "mrbayes_run.nexus"
)

Arguments

constraint	The constraint tree: a phylo object or a newick character string, with or without branch lengths.
taxa	A character vector with taxon names to be maintained in tree
ncalibration	The node calibrations: a phylo object with branch lengths proportional to time; in this case all nodes from ncalibration will be used as calibration points. Alternatively, a list with two elements: the first is a character vector with node names from phy to calibrate; the second is a numeric vector with the corresponding ages to use as calibrations.
missing_taxa	A tree, a data frame or a vector enlisting all missing taxa you want to include. A tree Either as a phylo object or as a newick character string. It contains all taxa that you want at the end, both missing and non missing. This tree will be used as a hard constraint. A data.frame It contains two columns named "taxon" and "clade". The first one contains a character vector of missing taxon names. The second one contains a character or numeric vector of nodes from a constraint tree to which each taxon will be assigned. A character vector It contains the names of the missing taxa. They will be added at random to the constraint tree.
age_distribution	A character string specifying the type of calibration. Only "fixed" and "uniform" are implemented for now. fixed The age given in ncalibration will be used as fixed age. lognormal The age given in ncalibration will be used as mean age. The standard deviation can be provided. # still need to add this option. By default, a 95 CI sd is used. uniform The age given in ncalibration will be used as mean age. Where min_age = 0.9 * mean age, and max_age = 1.1 * mean age.
root_calibration	Used to set a calibration at the root or not. Default to FALSE. Only relevant if ncalibration is specified.
mrbayes_output_file	A character vector specifying the name of mrBayes run file and outputs (can specify directory too).

Value

A phylo object with branch lengths proportional to time. It saves all mrBayes outputs in the working directory.

datelife documentation built on July 10, 2023, 2:02 a.m.