ape (version 2.8)

njs: Tree Reconstruction from Incomplete Distances With NJ* or bio-NJ*

Description

Reconstructs a phylogenetic tree from a distance matrix with possibly missing values.

Usage

njs(X, fs = 15)
bionjs(X, fs = 15)

Arguments

Value

an object of class "phylo".

Details

Missing values represented by either NA or any negative number.

Basically, the Q* criterion is applied to all the pairs of leaves, and the s highest scoring ones are chosen for further analysis by the agglomeration criteria that better handle handle missing distances (see references for details).

References

http://www.biomedcentral.com/1471-2105/9/166