R Console and script files in R Programming - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the R Console used for?

The R Console is where you type and run R commands one at a time. It shows results immediately, like a chat with the computer.

beginner

What is an R script file?

An R script file is a text file that holds many R commands saved together. You can run the whole file to do tasks step-by-step.

beginner

How do you run an R script file in RStudio?

You can run an R script by clicking the 'Run' button or pressing Ctrl+Enter to run the current line or selection.

beginner

Why use script files instead of typing commands only in the console?

Script files save your work so you can reuse or fix it later. The console forgets commands after you close it.

beginner

How can you save your R script file?

You save an R script file by clicking 'File' > 'Save' or pressing Ctrl+S, then choosing a name with '.R' extension.

What happens when you type a command in the R Console and press Enter?

A The console closes.

B The command runs immediately and shows the result.

C The command opens a new script file.

D The command is saved but not run.

Typing a command in the R Console and pressing Enter runs it right away and shows the output.

Which file extension is used for R script files?

A .R

B .rscript

C .txt

D .rs

R script files use the '.R' extension to identify them as R code files.

How can you run a single line of code from an R script in RStudio?

A Press Ctrl+Enter or click 'Run'.

B Press Ctrl+S.

C Close the script file.

D Type it again in the console.

Ctrl+Enter or the 'Run' button runs the current line or selected code from the script.

Why is it better to use script files instead of only the console?

A Script files cannot be edited.

B Console commands are faster.

C Console commands are saved automatically.

D Script files save your commands for later use.

Script files keep your commands saved so you can reuse or fix them anytime.

What does pressing Ctrl+S do in an R script window?

A Runs the script.

B Closes the script.

C Saves the script file.

D Clears the console.

Ctrl+S saves the current script file to your computer.

Explain the difference between using the R Console and an R script file.

Think about how you work with quick commands versus saving your work.

Describe the steps to create, run, and save an R script file in RStudio.

Imagine writing a recipe, testing it, and saving it for later.