install old package R
问题 i'm working in Rstudio version 0.98.507.0 and R 3.1.1. I'm working in a virtual machine, i can not install anything in the computer (professional computer and it's take so long to get authorization for new installation) i'm looking to install package " plotly " but this package require " dplyr " to work; The current version of " dplyr " is only working with R version 3.1.2 as well i'm trying to install an older version of "dplyr but nothing works. i downloaded the files from cran. i put the