2.4 Install R: Windows

Summary

  1. Visit https://cloud.r-project.org/;
  2. Tap Download R for Windows;
  3. Tap install R;
  4. Download R-n.n.n for Windows;
  5. Open the downloaded exe to install R choosing all the defaults;
  6. Add C:\Program Files\R\R-n.n.n\bin to your PATH (see below);
  7. Start R in a Command Prompt;
  8. Run install.packages() as in Section 2.1.

Details

A key part of installing R on Windows is to update what is called an environment variable of the name PATH. This is to tell Windows the location where you have installed R so that Rattle can find R. It has been reported that sometimes you will need to reboot Windows for the PATH to take effect.

  • Visit https://cloud.r-project.org/ and navigate to Windows install;
  • Click on Download R for Windows and then install R for the first time and then the Download R-4.6.1 for Windows (noting the version number here is 4.6.1, but could be updated);
  • Open the downloaded exe file and install R with all defaults into C:\Program Files\R\R-4.6.1;
  • Add C:\Program Files\R\R-4.6.1 to the PATH environment variable:
    • Open Control Panel and choose Edit the system environment variables or search for environment in the search bar
    • Click Environment Variables…
    • Under User variables for … click the Path entry and then Edit…
    • Click New and then add C:\Program Files\R\R-4.6.1
    • Click OK a few times to close the windows.
  • Start a Command Prompt, type R and then press Enter to run R. Install the requisite R packages with the install.packages() command in Section 2.1 (copy the command and paste into the Command Prompt.
  • You will be asked Please select a CRAN mirror for use in this session. Its okay to go with 0-Cloud [https]. The installation can take 5 or more minutes, depending on your Internet connection.

Test that this works for the normal user by starting up the Command Prompt, running R, and then, for example library(ada).


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