无法安装汽车包装

Question

I am unable to install the car package using version 3.4.4 in r. I keep getting error messages:

warning in install.packages : package 'car' not available (for R version 3.4.4)

I tried using the normal function install.packages('car') and also

install.packages('car', dependencies=TRUE, repos='http://cran.rstudio.com/')

but I'm still having the same error.

Answer 1

Try installing an old version of car that does not require R 3.5 :

library(devtools)
install_version("car", version = "3.0-2", repos = "http://cran.us.r-project.org")