Kcalc {picante}R Documentation

K statistic of phylogenetic signal

Description

Calculates K statistic of phylogenetic signal

Usage

Kcalc(x, phy)

Arguments

x Vector or data.frame of trait data (in phylo$tip.label order)
phy phylo object

Value

K K statistic

Warning

Assumes that trait data are sorted in the same order as phylo$tip.label

Author(s)

Simon Blomberg <s.blomberg1@uq.edu.au> and David Ackerly <dackerly@berkeley.edu>

References

Blomberg, S. P., and T. Garland, Jr. 2002. Tempo and mode in evolution: phylogenetic inertia, adaptation and comparative methods. Journal of Evolutionary Biology 15:899-910.

Blomberg, S. P., T. Garland, Jr., and A. R. Ives. 2003. Testing for phylogenetic signal in comparative data: behavioral traits are more labile. Evolution 57:717-745.

See Also

phylosignal

Examples

randtree <- rcoal(20)
randtraits <- evolve.brownian(randtree)
Kcalc(randtraits[randtree$tip.label],randtree)

[Package picante version 0.6-1 Index]