R: Number of trees matching a bipartition split

TreesMatchingSplit {TreeTools} | R Documentation

## Number of trees matching a bipartition split

### Description

Calculates the number of unrooted bifurcated trees that are consistent with a bipartition split that divides taxa into groups of size `A` and `B`.

### Usage

    TreesMatchingSplit(A, B = A[2])

    LnTreesMatchingSplit(A, B = A[2])

    Log2TreesMatchingSplit(A, B = A[2])

### Arguments

`A, B` | Integer specifying the number of taxa in each partition.

### Value

`TreesMatchingSplit()` returns a numeric specifying the number of trees that are compatible with the given split.

`LnTreesMatchingSplit()` and `Log2TreesMatchingSplit()` give the natural and base-2 logarithms of this number.

### Author(s)

Martin R. Smith (martin.smith@durham.ac.uk)

### See Also

Other split information functions: `CharacterInformation()`, `SplitInformation()`, `SplitMatchProbability()`, `UnrootedTreesMatchingSplit()`

### Examples

    TreesMatchingSplit(5, 6)
    LnTreesMatchingSplit(5, 6)
    Log2TreesMatchingSplit(5, 6)

[Package TreeTools version 1.7.2 Index]