¿Is there some way to add labels to ellipses in a PCA?
E.g. I would like to add labels to these ellipses
like that:
(See the bold and big words over each ellipse, for this example I added labels with Photoshop)
Code:
data(iris)
res.pca <- prcomp(iris[, -5], scale = TRUE)
fviz_pca_biplot(res.pca, label = "var", habillage=iris$Species,
addEllipses=TRUE, ellipse.level=0.95,
ggtheme = theme_minimal())
In the "label" argument there is not an option to put labels on the ellipses, and I do not have any idea how to add labels over each ellipse.
I will be very grateful with some direction