G_PCA: Plot the principal components of a genomic relationship...
In neyhartj/gws:

G_PCA

R Documentation

Plot the principal components of a genomic relationship matrix

Description

This function takes a genomic relationship matrix (i.e. one generated by the A.mat function in rrBLUP), performs a singular value decomposition, and plots the designated principal components.

Usage

G_PCA(G, x.PC, y.PC, col = NULL, scree = FALSE, return.data = FALSE)

Arguments

`G`	A genomic relationship `matrix` of dimensions n x n, where n is the number of entries.
`x.PC`	The principal component to plot on the x-axis.
`y.PC`	The principal component to plot on the y-axis.
`col`	A `factor` of categories by which to color the plot of principal componts. Must be of length n.
`scree`	A `logical` indicating whether to display a scree plot.
`return.data`	A `logical` indicating whether to return the results of the singular value decomposition.