gl.amova: Performs AMOVA using genlight data

In dartR: Importing and Analysing 'SNP' and 'Silicodart' Data Generated by Genome-Wide Restriction Fragment Analysis

Performs AMOVA using genlight data

Description

This script performs an AMOVA based on the genetic distance matrix from stamppNeisD() [package StAMPP] using the amova() function from the package PEGAS for exploring within and between population variation. For detailed information use their help pages: ?pegas::amova, ?StAMPP::stamppAmova. Be aware due to a conflict of the amova functions from various packages I had to 'hack' StAMPP::stamppAmova to avoid a namespace conflict.

Usage

gl.amova(x, distance = NULL, permutations = 100, verbose = NULL)

Arguments

x	Name of the genlight containing the SNP genotypes, with population information [required].
distance	Distance matrix between individuals (if not provided NeisD from StAMPP::stamppNeisD is calculated) [default NULL].
permutations	Number of permutations to perform for hypothesis testing [default 100]. Please note should be set to 1000 for analysis.
verbose	Verbosity: 0, silent or fatal errors; 1, begin and end; 2, progress log ; 3, progress and results summary; 5, full report [default 2, unless specified using gl.set.verbosity].

Value

An object of class 'amova' which is a list with a table of sums of square deviations (SSD), mean square deviations (MSD), and the number of degrees of freedom, and a vector of variance components.

Author(s)

Bernd Gruber (bugs? Post to https://groups.google.com/d/forum/dartr)

Examples

#permutations should be higher, here set to 1 because of speed
out <- gl.amova(bandicoot.gl, permutations=1)

dartR documentation built on June 8, 2023, 6:48 a.m.