R Studio

Ain't that a pretty logo?

Learning Objectives

• Introduction to RStudio
• Duration: ~5 Minutes

Titanic after nearly colliding with the SS City of New York and Oceanic

Start RStudio

• RStudio is available on Linux, Mac, and Windows
• You must install R separately
• Cost == $0 (AGPL3)
• https://www.rstudio.com/products/rstudio/
• Please tell us now if you are having trouble

Large RStudio Icon

Screenshot #1

Screenshot #2

2 Ways To Run

REPL Window

• Hit Enter
• Highly interactive
• History saved automatically
• Best for exploration / experimentation

Editor Window

• Hit Control+Enter
• Less interactive
• History saved when you save the file
• Best for documented / reproducible work

REPL: Read Eval Print Loop

Interactive programming is EASIER

## Simple addition!
1+1

## Hasn't changed(yet)!
sqrt(9)

## We can pass values to functions and get results
sqrt(1+5+6-3)
    

Your Turn!

## What is the value of:
## (1+2)*(1+1+1) ?

## Hint: The "#" is the comment character!
    

Other Features Of RStudio

• Data objects
• Help information
• Plots & Graphs
• Files

RStudio is the most popular IDE for R. Others include Statet (Eclipse) and ESS (Emacs). Microsoft and SAS are integrating R into their software. More competition is good.