Understanding Negative Weights in Principal Component Analysis for Index Construction

Linear Discriminant Analysis with Morphological Data: A Custom Approach Using R and geomorph Packages

Resolving 'names' Attribute Errors When Plotting PCA Results with ggplot2

Using ggplot2 for PCA/PCR Results: A Biplot Style Visualization in R

Creating Overlapping PCA Plots with Multiple Variables and Custom Colors in R Using prcomp and FactoExtra

Customizing ggbiplot with GeomBag Function in R for Visualizing High-Dimensional Data