Dtest: Conducts correlational D-test from stochastic mapping

In phytools: Phylogenetic Tools for Comparative Biology (and Other Things)

Conducts correlational D-test from stochastic mapping

Description

Conducts the 'D-test' of Huelsenbeck et al. (2003).

Usage

Dtest(t1, t2, nsim=100, ...)

Arguments

t1	set of stochastic map trees (i.e., object of class "multiSimmap" for character 1. Note that t1 and t2 should be of the same length.
t2	set of stochastic map trees (i.e., object of class "multiSimmap" for character 2. Note that t1 and t2 should be of the same length.
nsim	number of simulations to use in the test.
...	arguments to be passed internally to make.simmap. Note that (for now) these must be the same for both t1 and t2 (that is to say, we are not able to assume different trait evolution models for each tree).

Details

Note that this function has been included without much testing, and so the user should be wary.

Value

An object of class "Dtest".

Author(s)

Liam Revell [e-mail]

References

Huelsenbeck, J. P., R. Neilsen, and J. P. Bollback (2003) Stochastic mapping of morphological characters. Systematic Biology, 52, 131-138.

Revell, L. J. (2024) phytools 2.0: an updated R ecosystem for phylogenetic comparative methods (and other things). PeerJ, 12, e16505.

See Also

make.simmap, map.overlap

phytools documentation built on Nov. 5, 2025, 5:11 p.m.