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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