plotpca: plot the PCA for multiple samples

In yufree/enviGCMS: GC/LC-MS Data Analysis for Environmental Science

plot the PCA for multiple samples

Description

plot the PCA for multiple samples

Usage

plotpca(
  data,
  lv = NULL,
  index = NULL,
  center = TRUE,
  scale = TRUE,
  xrange = NULL,
  yrange = NULL,
  pch = NULL,
  ...
)

Arguments

data	data row as peaks and column as samples
lv	group information
index	index for selected peaks
center	parameters for PCA
scale	parameters for scale
xrange	x axis range for return samples, default NULL
yrange	y axis range for return samples, default NULL
pch	default pch would be the first character of group information or samples name
...	other parameters for 'plot' function

Value

if xrange and yrange are not NULL, return file name of all selected samples on 2D score plot

Examples

data(list)
plotpca(list$data, lv = as.character(list$group$sample_group))

yufree/enviGCMS documentation built on Sept. 12, 2023, 6:34 p.m.