is.ultrametric

a numeric >= 0, variation below this value are considered
    non-significant (see details).

This function computes the distances from each tip to the root: if the
  variance of these distances is null, the tree is considered as
  ultrametric.

utilities

ape provides functions for reading, writing, plotting,
  and manipulating phylogenetic trees, analyses of comparative data
  in a phylogenetic framework, analyses of diversification and
  macroevolution, computing distances from allelic and nucleotide
  data, reading nucleotide sequences, and several tools such as
  Mantel's test, computation of minimum spanning tree, the population
  parameter theta based on various approaches, nucleotide diversity,
  generalized skyline plots, estimation of absolute evolutionary rates
  and clock-like trees using mean path lengths, non-parametric rate
  smoothing and penalized likelihood, classifying genes in trees using
  the Klastorin-Misawa-Tajima approach. Phylogeny estimation can be done
  with the NJ, BIONJ, ME, and ML methods.

is.ultrametric: Test if a Tree is Ultrametric

Description

Usage

Arguments

Value

Details

See Also