If clicking on the ‘Run’ button starts to become tiresome you can use the keyboard shortcut ‘ctrl + enter’ (on Windows and Linux) or ‘cmd + enter’ (on Mac). You should see the result in the Console window. To source your code from your script editor to the Console simply place your cursor on the line of code and then click on the ‘Run’ button in the top right of the script editor pane. The new window is a script editor and where you will write your code. Notice that you have a new window (called the Source pane) in the top left of RStudio and the Console is now in the bottom left position. To create a new R script click on the ‘File’ menu then select New File –> R Script. These lines of code are then sourced into the R Console line by line. R file extension which contains your lines of R code. An R script is just a plain text file with a. Instead of typing R code directly into the Console a better approach is to create an R script. However, once you start writing more R code this becomes rather cumbersome.

Don’t worry about the at the start of the line for now. For example, if you type 2 + 2 into the Console you should obtain the answer 4 (reassuringly). You can type R code directly into the Console at the command line prompt, >. This is where R evaluates all the code you write. 1.4.2 Integrated developement environements.

R studio