plotPCA: PCA score plot

In MUVR2: Multivariate Methods with Unbiased Variable Selection

PCA score plot

Description

Customised PCA score plots with the possibility to choose PCs, exporting to png and the possibility to add color or different plotting symbols according to variable.

Usage

plotPCA(pca, PC1 = 1, PC2 = 2, file, colVar, symbVar, main = "")

Arguments

pca	A 'prcomp' object
PC1	Principal component on x-axis
PC2	Principal component on y-axis
file	If specified provides the name of a png export file. Otherwise normal plot.
colVar	Continuous variable for coloring observations (40 cuts)
symbVar	Categorical/discrete variable for multiple plot symbols
main	If provided provides a main title of the plot

Value

A PCA score plot. Exported as png if 'file' specified in function call.

Examples

data("freelive2")
pca_object<-prcomp(XRVIP2)
plotPCA(pca_object)

MUVR2 documentation built on Sept. 16, 2024, 9:06 a.m.