# R Commander installation in R on Windows 10

## Table of Contents

## Motivation

Due to the novel coronavirus (SARS-CoV-2) and its related disease 😷 COVID-19 employees and students at Wageningen University & Research are all working from home. Students taking Statistical Courses taught by Mathematical and Statistical Methods at Wageningen University & Research will most likely use R. Students enrolled in MAT-14303 Basic Statistics, MAT-15303 Statistics 1, MAT-15403 Statistics 2 and MAT-20306 Advanced Statistics (first two weeks of this course) will use R Commander instead of basic R. Therefore, they will need to install R Commander.

**privately owned**desktop or laptop computer running Windows 10 as operating system.

__! For a WURclient desktop or laptop see the post: R Commander installation in R on a WURclient computer.__

**not to be used on WURclient desktops or laptops**## R Commander Installation from the R GUI

Students, who installed R by using the WUR AppStore, can skip the installation of R Commander. The WUR AppStore version of R already contains everything to run R Commander.

This post is only intended for students, who followed the Manual Installation of R.

Prior requirement:

To be able to install R Commander you will need to have R installed first. If you haven’t done so already, please first install R on your Windows 10 computer (use the link above to go to that specific post).

This post was originally based on R version 3.6.3. For newer versions of R the steps described are the same, only some screens you will see during your installation will display a higher version number of R compared to the screenshots in this post.

- Start
`R x64 4.1.1`

from the ‘R’ folder in the ‘Start Menu’ as displayed below in Figure 1.

- The R GUI (graphical user interface) will open and the cursor will be ready for input behind the prompt, as indicated by the
`>`

sign. Use the mouse pointer and navigate to the top menu and select ‘Packages’ > ‘Install Package(s)…’ as shown in Figure 2.

- Now a CRAN (Comprehensive R Archive Network) mirror needs to be selected, from which packages will be installed. Select, as shown below in Figure 3, the top one ‘0-Cloud [https]’. This to make sure, that always the nearest CRAN mirror will be used no matter where you will be on the globe 🌍. Click on the ‘OK’ button to confirm the selection.

- After the CRAN mirror selection a list of available packages will appear. Scroll down to find the
`Rcmdr`

package and click it to select. As shown below in Figure 4 the package will turn blue, when selected. Confirm the installation by clicking the ‘OK’ button. Now a lot will happen in your display while the`Rcmdr`

pacakage and its dependencies are being installed.

- Repeat step 4. for installing the
`RcmdrPlugin.HH`

package. This plugin is required for MAT-15403 Statistics 2 to be able to do the practicals on Simple Linear Regression.

`RcmdrPlugin.HH`

package has finished, you are ready 😆 to start R 4.1.1 and use R Commander.
**When using R Commander for the first time additional packages, required for R Commander to work correctly, will need to be installed. Allow the installation to be able to work smoothly without errors!**

## Starting and restarting R Commander

### Start R Commander

To start R Commander type the `library(Rcmdr)`

command behind the R Console prompt (indicated by a `>`

sign) and press return (↩) to execute the command.

### Restart R Commander

In case R Commander crashes while using it, you will need to resart it. However, in the R Console currently running R, the `library(Rcmdr)`

command will not restart R Commander.

The reason is, that the R Commander package is still loaded and first needs to be detached. To detach the R Commander package you can copy (Ctrl+C) the following command:

```
detach("package:Rcmdr", unload = TRUE)
```

paste (Ctrl+V) it behind the prompt in the R Console (indicated by a `>`

sign) and press return (↩) to execute the command.

Now R Commander can be restarted by using the `library(Rcmdr)`

command as before.