pca_plot: PCA plot

In wanchanglin/mtExtra: More functions for metabolomics data analysis

PCA plot

Description

Plot PCA of a matrix or data frame with base R function.

Usage

pca_plot(x, y = NULL, scale = TRUE, ep.plot = FALSE, ...)

Arguments

x	a matrix for plotting. Should have row names
y	a factor or character vector specifying the group information of the row.
scale	a logical flag to indicate whether or not scale x.
ep.plot	plot ellipse or not.
...	further parameters passed to plot

Details

The rownames of x will be shown in the plot. y is used to indicate the group of row of x.

Value

a base R graphics object.

Author(s)

Wanchang Lin

Examples

data(iris)
pca_plot(iris[, 1:4], iris[, 5], ep.plot = TRUE)

wanchanglin/mtExtra documentation built on Aug. 2, 2024, 5:47 p.m.