Which command is used to install packages R?
Installing Packages From CRAN The most common way is to use the CRAN repository, then you just need the name of the package and use the command install.
How do I know if a package is installed in R?
To see what packages are installed, use the installed. packages() command. This will return a matrix with a row for each package that has been installed.
How do I install packages?
Installing an R PackagePackages can be installed with the install.packages() function in R.To install a single package, pass the name of the lecture to the install.packages() function as the first argument.The following the code installs the slidify package from CRAN.
Where does R install packages?
R packages are installed in a directory called library. The R function . libPaths() can be used to get the path to the library.
How do I know what version of R?
1. Check your current R version. To find out your current version, open R and it will be shown in the console. If you are using RStudio you can check you R version by clicking on Tools>Global Options… yep my current version is now R-3.3.