! THE PACKAGE IS NO MORE MAINTAINED ! IT HAS BEEN SEPARATED IN DIFFERENT PACKAGE AVAILABLE HERE : https://gitlab.univ-lr.fr/pelaverse
pkgdown site of geffaeR to get the documentation of the functions and vignettes with example of the use of the package : https://mathieugenu.github.io/geffaeR/
remotes::install_github("MathieuGenu/geffaeR")
library(geffaeR)