About R

• R is a programming language for statistics (computing and visualisation)
• For a brief history of R, go to https://en.wikipedia.org/wiki/R_(programming_language)

Download and install R

• Go to https://cloud.r-project.org/
• Download the version of R for your operating system: Windows, Mac, or Linux
• The installation file will then get downloaded: .pkg on a Mac, or .exe on Windows, people with Linux know what they’re doing
• Follow the instructions for installation
• There is no need to run R (you’ll know why in a jiffy)

About RStudio

• RStudio is an IDE (Integrated Development Environment) for R
• For more about RStudio, go to: https://en.wikipedia.org/wiki/RStudio

Download and install RStudio

• Go to: https://rstudio.com/products/rstudio/download/
• Scroll down, there will be multiple versions offered
• You want “RStudio desktop - Free”
• Click to download
• Install following instructions
• Now we are ready to run RStudio

If you run RStudio, you should see this

Two adjustments

• Open the options window: Cmd+, (this means press Command and comma simultaneously) on a Mac or go to Tools and then all the way down to Global Options
• Uncheck “Restore .RData into workspace on startup”
• Set “Save workspace to .RData on exit” to “Never”

Additional adjustments?

• If you want to export .pdf files for your assignment submissions, you will need to install some R packages
• To do this, you need to run up to three lines in your console (the part on the left you see when you first open RStudio)
• Do not do this now; do it when you have a few minutes to wait for the installation to finish

Additional adjustments (cont’d)?

• The first line is:
  install.packages( “tidyverse”)
  
• Then, remember if you have LaTeX already installed on your computer
• If you do, you’re done
• If you don’t, then run:
  install.packages(“tinytex”)
  
• Then, you run:
  tinytex::install_tinytex()
  

HELP!

• Google is your best friend!
• Within the console you can type:
  help(“command”)
  or
  ?command

Now we play …