biplot_factoextra: Biplot with factorextra
In lisaschneider0509/lipidomeComparisonR:

Description Usage Arguments Details Examples

View source: R/lipidome_comparison_pca.R

'biplot_factoextra' prints a biplot from a prcomp element.

biplot_factoextra(
  prcomp_element,
  groups = "none",
  ellipse = FALSE,
  loadings = "none",
  out_path = "none"
)

`prcomp_element`	object of class prcomp. The base::prcomp function performs a principal component analysis. This is the object it returns.
`groups`	vector. Groups to color by. Default = "none"
`ellipse`	bool. Draw confidence ellipse arount the clusters of groups. Default = FALSE.
`loadings`	string / vector of strings. Draw loadings arrows and labels. c("arrow", "text"), "text", "none" (default).
`out_path`	string. Path to save plot to png. If out_path is empty, the plot is printed to the device.

This function prints a biplot from a prcomp element. The points can be colored by group. Loadings are optionally displayed.

{pca_iris <- prcomp(dplyr::select_if(iris, is.numeric))
iris_groups <- iris$Species
biplot_factoextra(pca_iris)
biplot_factoextra(pca_iris,
                  groups = iris_groups,
                  ellipse = TRUE,
                  loadings = c("arrow", "text"))}