Error in `row.names<-.data.frame`(`*tmp*`, value = value) : duplicate 'row.names' are not...

Change colour of supplementary column using factoextra in R...

Removing the inner color of the ellipse in PCA...

Specify different pointshapes for var and ind in fviz_pca_biplot...

How do I label only a subset of points in a biplot?...

How to display observations in pca biplot?...