Number of distinct splits

NSplits() counts the unique bipartition splits in a tree or object.

NSplits(x)

NPartitions(x)

# S3 method for class 'phylo'
NSplits(x)

# S3 method for class 'list'
NSplits(x)

# S3 method for class 'multiPhylo'
NSplits(x)

# S3 method for class 'Splits'
NSplits(x)

# S3 method for class 'numeric'
NSplits(x)

# S3 method for class '`NULL`'
NSplits(x)

# S3 method for class 'ClusterTable'
NSplits(x)

# S3 method for class 'character'
NSplits(x)

Arguments

x

A phylogenetic tree of class phylo; a list of such trees (of class list or multiPhylo); a Splits object; a vector of integers; or a character vector listing tips of a tree, or a character of length one specifying a tree in Newick format.

Value

NSplits() returns an integer specifying the number of bipartitions in the specified objects, or in a binary tree with x tips.

See also

Other tree properties: ConsensusWithout(), MatchEdges(), NTip(), NodeNumbers(), PathLengths(), SplitsInBinaryTree(), TipLabels(), TreeIsRooted()

Other Splits operations: LabelSplits(), NTip(), PolarizeSplits(), SplitFrequency(), Splits, SplitsInBinaryTree(), TipLabels(), TipsInSplits(), match.Splits, xor()

Author

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

Examples

NSplits(8L)
#> [1] 5
NSplits(PectinateTree(8))
#> [1] 5
NSplits(as.Splits(BalancedTree(8)))
#> [1] 5