R-Studio Package Management

Updates to R packages rarely time up with our terms, often requiring updates to either R or other packages in the middle of the semester causing lost time in the classroom. The instructions below include how to point R-Studio to specific releases of packages, as well as getting the latest packages from CRAN.



CRAN Latest - RStudio

In the case that a package isn't updated in the Latest Packages Repository, the link is malfunctioning, or the link was lost you can use the Global CRAN repository to fulfill your R packages needs.

  1. Open RStudio

  2. Navigate to Tools > Global Options...

  3. On the Options menu, click on Packages located on the left-hand menu


  4. Under Primary CRAN repository, click Change


  5. Under CRAN Mirrors, click on Global (CDN) - RStudio

  6. Click OK

  7. Click Apply

Installing Older Versions of Packages

Using Devtools to Install Older Package Versions

  1. Open RStudio
  2. Click on File > New File > R Script
  3. In the script window, type require(devtools). Then on the next line type,  install_version(package name, version = #, repos = "http://cran.us.r-project.org")
    1. Example: install_version("ggplot", version = "0.9.1", repos = "http://cran.us.r-project.org")

Installing an Older Package From Source

  1. Open RStudio
  2. Click on File > New File > R Script
  3. In the script window, type packageurl ← package url. Then on the next line type,  install.packages(packageurl, repos = NULL , type = "source")
    1. Example: 
      1. packageurl ←  "http://cran.r-project.org/src/contrib/Archive/ggplot2/ggplot2_0.9.1.tar.gz"
      2. install.packages(packageurl, repos=NULL, type="source")

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