Quick Start with Rstudio

Let’s have a quick look at the Rstudio IDE. It will help you to navigate the IDE faster.

To remember

• Each piece of code in R is saved with a .R extension and is called a SCRIPT.

• Comments in a R script start with the “#” symbol.

• The prompt in the console starts with the “>” symbol.

• Each package that you need for a script should first be installed and then loaded using the library command.

• Installation of packages are done only once, however loading of packages are done for every session.

• IF YOUR SESSION RESTARTS, LOAD ALL YOUR PACKAGES ONCE AGAIN!! (using the library(NameOfPkg) command)

• Clear the console: Ctrl+L

• Clear the workspace: rm(list = ls())

• Code Editor- The place to write your scripts and for viewing data structures using the View command. It contains buttons for running the entire script or for running it line-by-line.

• R Console- You will use it view the output and for executing single-line commands.

• Workspace and History- You will find each variable that you created under the “Workspace” tab and a history of all your commands under the “History” tab.

• Plots and Files- Your one stop for viewing files/plots/installing packages etc.