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.
Where are my R packages installed?
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 if a package is installed in R?
If any packages are missing, they’re installed (with dependencies) into the default Library and are then loaded.
…
check() function basically goes:
- Using lapply() to the list of packages.
- If a package is not installed, install it.
- Otherwise, load it.
28 апр. 2019 г.
How do I change where a package is installed in R?
R uses a single package library for each installed version of R on your machine. Fortunately it is easy to modify the path where R installs your packages. To do this, you simply call the function . libPaths() and specify the library location.
Which command is used to install packages R?
To install any package from CRAN, you use install. packages() . You only need to install packages the first time you use R (or after updating to a new version). R Tip: You can just type this into the command line of R to install each package.
How do I know what version of R?
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.
How do I list all packages 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 download a package in R?
Part 1-Getting the Package onto Your Computer
- Open R via your preferred method (icon on desktop, Start Menu, dock, etc.)
- Click “Packages” in the top menu then click “Install package(s)”.
- Choose a mirror that is closest to your geographical location.
- Now you get to choose which packages you want to install.
31 янв. 2013 г.
How do I manually install a package in R?
Go into R, click on Packages (at the top of the R console), then click on “Install package(s) from local zip files”, then find the zip file with arm from wherever you just saved it. Do the same thing to install each of the other packages you want to install.
Where is the .rprofile file?
7.2 .
Renviron file is sourced. Typically . Rprofile is located in the users’ home directory ( ~/. Rprofile ), however a different location can be configured by setting the R_PROFILE_USER environment variable.
How do I uninstall a package in R?
Go to the Packages in right bottom corner of Rstudio, sear the package name and click on the adjacent X icon to remove it.
How do I load a package into R?
Adding Packages
- Choose Install Packages from the Packages menu.
- Select a CRAN Mirror. (e.g. Norway)
- Select a package. (e.g. boot)
- Then use the library(package) function to load it for use. (e.g. library(boot))
How do I install multiple R packages at once?
Any package on CRAN can be installed using the install. packages() function. You can install multiple packages by passing a vector of package names to the function, for example, install. packages(c(“dplyr”, “stringr”)) .
What is R base package?
This package contains the basic functions which let R function as a language: arithmetic, input/output, basic programming support, etc. Its contents are available through inheritance from any environment. For a complete list of functions, use library(help = “base”) .