How to set the font size of data label in fviz_pca_var of factoextra

Question

When I submitted a paper to a journal, the journal asked me to set the font size to 7.5, however when I　used the following code, only the axis text changed, the label size remained unchanged,

    library(ggplot2)
    library(FactoMineR)
    library(factoextra)

    irispca <- PCA(iris,quali.sup = 5)
    fviz_pca_var(irispca)+
   theme(text = element_text(size = 7.5),
         axis.title = element_text(size = 7.5),
         axis.text = element_text(size = 7.5)
         )

Any suggestion is appreciated to tell what code should I used to change the label size?

Answer 1

Getting into fviz_pca_var looks like you can just pass a labelsize in the function:

irispca <- PCA(iris,quali.sup = 5)
fviz_pca_var(irispca, labelsize = 3, repel = TRUE) +
  theme(text = element_text(size = 7.5),
        axis.title = element_text(size = 7.5),
        axis.text = element_text(size = 7.5))

Answer 2

The argument labelsize is passed as an aditional argument to the fviz() function. If you then go to the fviz help page, the argument is there.

I would rather add a comment to the above answer but I do not have the required reputation so pardon me...