REVIEWER

output and error messages are displayed.

output and error messages are displayed.

where you will see the different objects you create or the different datasets you import.

contains everything else including help, plots, packages, etc.

you can type and save your commands and make notes to yourself about projects.

Extracting means selecting columns. An imported Excel data file in R is classified as a dataframe, how we can extract a single column from a dataframe. Give the syntax:

Number values like 3.6 are called? These values are recognized in R as is.

Boolean values true or false are called_, They are recognized in R as TRUE or T for true and FALSE or F for false.

Text (or string) values are called__, and are recognized with ”” or ”.

a type of array that is one-dimensional.

they are logical elements in programming languages that are used for storing data.