Install and Update R

Introduction

This article is for installing R if it has not been installed before and for updating R if this is needed. If R is already installed, skip the installation chapter.

Installation of R

R is installed from softwareshoppen which is found at the desktop. Click “installer” and “bestil” and wait for 10 to 15 minutes.

After the instillation of R, we also need to install R-studio and wait again.

Update R

R can be updated directly in R, as softwareshoppen is not always up-to-date. This requires a specific package called “installr”. The installation needs to be run directly from R and not R-studio.

Step 1

Open R (not R studio)

Step 2

Install the package “installr” by typing install.packages(“installr”) in R.

Step 3

Once the package has been installed, use the function “updateR()” by typing installr::updateR()

Step 4

Follow the installation process by clicking next and ok to all boxes.

When the installation is complete, close R and open Rstudio.

Step 5

To confirm that R has correctly been updated, open R-studio and notice the version in the upper right corner

You have now successfully updated R

Step 6

If the latest version of R is not showing correctly in Rstudio, close Rstudio. Now open Rstudio by holding down ctrl while clicking on the Rstudio logo. Now you can choose the correct version of R.