I am working on PCA analysis and am wondering how to format the figure? For example, I use the code below to plot the figure, as shown below. How to edit the x and y axis titles? For example, I want x-axis to be PC1 instead of Dim1 (41.%), how to realize this? Second, how to remove the background grids and use a rectangular box? Thanks for your help.
library("FactoMineR") library("factoextra") library("corrplot") library("corrplot") data(decathlon2) # It contains 27 individuals (athletes) described by 13 variables. decathlon2.active <- decathlon2[1:23, 1:10] head(decathlon2.active[, 1:6], 4) res.pca <- PCA(decathlon2.active, graph = FALSE) print(res.pca) fviz_eig(res.pca, addlabels = TRUE, ylim = c(0, 50)) # plot the variables fviz_pca_var(res.pca, col.var = "black")