Set Up On Your Computer

Thanks for your interest in learning R. For the workshop, we will be using RStudio as our interface to R. In order to participate in this workshop you will need to make sure you have R and RStudio installed on your computer.

Thanks to the USGS-R Training group and Data Carpentry for making their installation materials available. The following instructions come directly from their materials, with a few minor edits to help you get all set up for the workshop.

Install R and RStudio

R and RStudio are separate downloads and installations. R is the underlying statistical computing environment, but using R alone is no fun. RStudio is a graphical integrated development environment (IDE) that makes using R much easier and more interactive. You need to install R before you install RStudio.

Windows: Download and install R

Go to CRAN and download the R installer for Windows. Make sure to choose the latest stable version (v4.0.4 as of February 2021).

Once the installer downloads, Right-click on it and select “Run as administrator”.

Type in your credentials and click yes (or if you don’t have administrator access have your IT rep install with Admin privileges).

You can click next through the standard dialogs and accept most defaults. But at the destination screen, please verify that it is installing it to C:\Program Files\R

At the “Select Components” screen, you can accept the default and install both 32-bit and 64-bit versions.

At this screen, uncheck ‘Create a desktop icon’ because non-admin users in Windows will be unable to delete it.

Windows: Download and install RStudio

Go to the RStudio download page and select the download that is appropriate for your operating system.

Double-click the installer. It will ask for your administrator credentials to install (you might need to have your IT rep install again).

Accept all the default options for the RStudio install.

macOS: Download and install R

  • Download and install R from the CRAN website for Mac here.
  • Select the .pkg file for the latest R version
  • Double click on the downloaded file to install R
  • It is also a good idea to install XQuartz (needed by some packages)

macOS: Download and install RStudio

  • Go to the RStudio download page
  • Under Installers select RStudio x.yy.zzz - Mac OS X 10.6+ (64-bit) (where x, y, and z represent version numbers)
  • Double click the file to install RStudio
  • Once it’s installed, open RStudio to make sure it works and you don’t get any error messages.

Check Install

Open RStudio

Once installed, RStudio should be accessible from the start menu. Start up RStudio. Once running it should look something like:

Find “Console” window

By default the console window will be on the left side of RStudio. Find that window. It will looking something like:

Copy and paste the code

Click in the window and paste in the code from below:

version$version.string

Verify your installed R version

Ideally you should be running the latest stable release (v4.0.4 as of February 2021). An older version of R is fine, but you should have at least version 4.0 installed.

Here is what my R version looks like.

## [1] "R version 4.0.2 (2020-06-22)"

Add Packages

Install packages available for all R users from CRAN and GitHub by pasting the following code into RStudio and hitting ENTER.

install.packages(c("tidyverse", "mapview", "remotes"))
remotes::install_github("tbep-tech/peptools")

If you see something like this:

That’s OK! There’s a dialog box hiding behind RStudio asking if you want to create a personal folder in your Documents folder. Click Yes. It will look something like this when done:

Grab the sample datasets

Download the zipped file of all the data from this link. Unzip the contents and place this folder at a location on your computer that you can access for the workshop.

Download the lesson R scripts

Download the zipped file of all the R scripts used for each lesson from this link. Unzip the content into a folder on your computer that you can access for the workshop.