R packages are a collection of R functions, complied code and sample data. They are stored under a directory called “library” in the R environment. By default, R installs a set of packages during installation. More packages are added later, when they are needed for some specific purpose.
Following is a list of commands to be used to check, verify and use the R packages.
- Get library locations containing R packages
.libPaths()
- Get the list of all the packages installed
library()
- Get all packages currently loaded in the R environment
search()
There are multiple ways to install R Package, below is one of them are,
- Installing Packages From CRAN: For installing Package from CRAN we need the name of the package and use the following command:
install.packages("package name")
In this session we will learn in detail, what are packages and how to use them.