Quartet (version 1.2.6)

ResolvedQuartets: Count resolved quartets

Description

Counts how many quartets are resolved or unresolved in a given tree, following Brodal et al. (2013).

Usage

ResolvedQuartets(tree, countTriplets = FALSE)
ResolvedTriplets(tree)

Value

ResolvedQuartets() returns a vector of length two, listing the number of quartets (or triplets) that are [1] resolved; [2] unresolved in the specified tree.

Arguments

tree

A tree of class phylo.

countTriplets

Logical; if TRUE, the function will return the number of triplets instead of the number of quartets.

Functions

• ResolvedTriplets(): Convenience function to calculate the number of resolved/unresolved triplets.

Author

Martin R. Smith ()

Details

Trees with more than 477 leaves risk encountering integer overflow errors, as the number of quartets is larger than can be stored in R's signed 32-bit integer representation. If warnings are thrown, check subsequent calculations for errors.

References

• Brodal2013Quartet

See Also

Other quartet counting functions: AllQuartets(), CompareQuartetsMulti(), CompareQuartets()

Examples

data(sq_trees)

ResolvedTriplets(sq_trees$collapse_some)
# Equivalent to:
ResolvedQuartets(sq_trees$collapse_some, countTriplets = TRUE)

vapply(sq_trees, ResolvedQuartets, integer(2))