met.plot_PCA2DScore: Create 2D PCA score plot

In NicWir/VisomX: User-Friendly and Comprehensive Analysis and Visualization of Omics Data

Create 2D PCA score plot

Description

met.plot_PCA2DScore visualizes clusters of samples based on their similarity in principal component analysis.

Usage

met.plot_PCA2DScore(
  mSetObj = NA,
  imgName = "PCA_2DScores",
  format = "pdf",
  dpi = NULL,
  subtitle = FALSE,
  width = NA,
  pcx,
  pcy,
  reg = 0.95,
  show = 1,
  grey.scale = 0,
  plot = TRUE,
  export = TRUE
)

Arguments

mSetObj	Input name of the created mSet object, Data container after principal component analysis (met.PCA.Anal).
imgName	(Character) Enter a name for the image file (if export = TRUE).
format	(Character, "png" or "pdf") image file format (if export = TRUE).
dpi	(Numeric) resolution of the image file (if export = TRUE). If NULL, the resolution will be chosen automatically based on the chosen file format (300 dpi for PNG, 72 dpi for PDF)
subtitle	(Logical, TRUE or FALSE) Shall the applied data transformation and scaling methods be displayed below the plot title?
width	(Numeric) width of the the image file in inches (if export = TRUE).
pcx	Specify the principal component on the x-axis
pcy	Specify the principal component on the y-axis
reg	Numeric, input a number between 0 and 1, 0.95 will display the 95 percent confidence regions, and 0 will not.
show	Display sample names, 1 = show names, 0 = do not show names.
grey.scale	Use grey-scale colors, 1 = grey-scale, 0 = not grey-scale.
plot	(Logical, TRUE or FALSE) Shall the plot be returned in the RStudio 'Plots' pane?
export	(Logical, TRUE or FALSE) Shall the plot be exported as PDF or PNG file?

Value

The input mSet object with added scatter plot. The plot can be retrieved from within R via print(mSetObj$imgSet$pca.score2d_PCx_PCy.plot).

Author(s)

Nicolas T. Wirth [e-mail] Technical University of Denmark License: GNU GPL (>= 2)

References

adapted from PlotPCA2DScore (https://github.com/xia-lab/MetaboAnalystR).

NicWir/VisomX documentation built on Dec. 8, 2024, 1:27 a.m.