R – Package List

How to list all packages that have been imported into current session

> (.packages())

Example output

> (.packages())
[1] "stats"     "graphics"  "grDevices" "utils"     "datasets"  "methods"  
[7] "base" 

To see if a package is installed:

> x<-grep("tidyverse",installed.packages())
> installed.packages()[x]

Install a number of packages as below:

> install.packages(c("nycflights13", "gapminder", "Lahman"))

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