Concepts in R

Question 1

data frame

Answer 1

2D with columns and rows

columns can be different data types

data.frame()

Question 2

factors

Answer 2

used for categorical variables

factor(c(“Male”, “female”, “male”))

Question 3

functions

Answer 3

designed to carry out a task and can be called from later in the code to run the task

Question 4

lists

Answer 4

can contain different data types (vectors, matrices, data frames)

Question 5

loops

Answer 5

repeat a block of code multiple times

Question 6

matrices

Answer 6

2D and can store values in rows/columns

data has to be same data type

Question 7

packages

Answer 7

R functions, data, and code all together

Question 8

vector

Answer 8

ordered collection of values