tajima.K {spider}

Calculate Tajima's K index of divergence

Description

Calculates Tajima's K index of divergence.

Usage

tajima.K(DNAbin, prop = TRUE)

Arguments

DNAbin

An object of class ‘DNAbin’.

prop

Logical. Should the function report the number of substitutions per nucleotide? Default of TRUE.

Value

A vector of length 1. If prop = FALSE, the mean number of substitutions between any two sequences is returned. If prop = TRUE (the default), this number is returned as the mean number of substitutions per nucleotide (i.e. the above divided by the length of the sequences).

Author(s)

Samuel Brown <[e-mail]>

References

Tajima, F. (1983). Evolutionary relationship of DNA sequences in finite populations. _Genetics_ *105*, 437-460.

See Also

dist.dna.

Examples

data(anoteropsis)
tajima.K(anoteropsis)
tajima.K(anoteropsis, prop = FALSE)