Introduction to R

Question 1

Is an interpreted programming language for statistical computing and graphics.

Answer 1

R

Question 2

Why use R for Data Analysis?

Answer 2

Free to download and use.

Question 3

What should one use when working with R?

Answer 3

RStudio

Question 4

Four Pane of RStudio

Answer 4

Console Pane, R Script or Source Pane, Environment and History Pane, Final Pane

Question 5

Output and error messages are displayed.

Answer 5

Console Pane

Question 6

You can type and save your commands and make notes to yourself about the project.

Answer 6

R Script or Source Pane

Question 7

The command for naming an object.

Answer 7

= or <-

Question 8

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

Answer 8

Environment and History Pane

Question 9

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

Answer 9

Final Pane

Question 10

What package do you use when importing excel files?

Answer 10

readxl

Question 11

Numbers or values like 3.6 are called?

Answer 11

numerics

Question 12

Boolean values like true or false are called?

Answer 12

logical

Question 13

Text or string values are called?

Answer 13

characters

Question 14

What function do you use when checking the data type of a variable?

Answer 14

class

Question 15

What functions do you use when inserting a file and detaching a file?

Answer 15

attach and detach