If you want to install the version of the package available in the CRAN of R, you need to copy the next code into your R console
install.packages("ZOIP")
If you want to install it, you need to copy the next code into your R console
if (!require("devtools")) install.packages("devtools")
devtools::install_github("jucdiaz/ZOIP", force = TRUE)
library(ZOIP) # Carga el paquete