phytools (version 0.7-70)

gammatest: Gamma test of Pybus & Harvey (2000)

Description

Conducts \(\gamma\)-test of Pybus & Harvey (2000).

Usage

gammatest(x)

Arguments

x

an object of class "ltt" resulting from a call of the function ltt.

Value

A an object of class "gammatest" consisting of a list that contains:

gamma

a value for the \(\gamma\)-statistic.

p

two-tailed P-value for the \(\gamma\)-test.

References

Pybus, O. G., and P. H. Harvey (2000) Testing macro-evolutionary models using incomplete molecular phylogenies. Proc. R. Soc. Lond. B, 267, 2267-2272.

Revell, L. J. (2012) phytools: An R package for phylogenetic comparative biology (and other things). Methods Ecol. Evol., 3, 217-223.

See Also

ltt, mccr

Examples

# NOT RUN {
tree<-pbtree(n=200)
gammatest(ltt(tree,plot=FALSE))
# }