popsize: Population size of the most recent common ancestor of two...
In bomeara/phybase: Basic functions for phylogenetic analysis

Description Usage Arguments Value Author(s) See Also Examples

This function computes the population size of the most recent common ancestor of two nodes.

1	popsize(inode, jnode, nodematrix)

`inode`	the first node, it could be an internode.
`jnode`	the second node, it could be an internode.
`nodematrix`	the tree node matrix

The function returns the population size of the most recent common ancestor of inode and jnode.

Liang Liu lliu@uga.edu

coaltime

treestr<-"((((H:0.00402,C:0.00402#0.035):0.00304,G:0.00706):0.00929,O:0.01635):0.1,W:0.11635);"
nodematrix<-read.tree.nodes(treestr)$nodes
popsize(1,2,nodematrix)
#[1] -9   ##this tree does not have values for population size.

popsize(1,1,nodematrix)
#[1] 0.035       ##the population size for the species C is 0.035