Ordered factors in R Programming - Mini Project: Build & Apply

Ordered Factors in R

📖 Scenario: You are working with survey data where participants rated their satisfaction as 'Low', 'Medium', or 'High'. You want to organize these ratings so R understands their order.

🎯 Goal: Create an ordered factor in R for satisfaction levels and display its structure and levels.

📋 What You'll Learn

Create a character vector called ratings with values: 'Low', 'High', 'Medium', 'Low', 'High'

Create an ordered factor called ordered_ratings from ratings with levels 'Low', 'Medium', 'High' in that order

Use the ordered = TRUE argument to make the factor ordered

Print the structure of ordered_ratings using str()

Print the levels of ordered_ratings using levels()

💡 Why This Matters

🌍 Real World

Ordered factors are useful when working with survey data, ratings, or any data where categories have a natural order.

💼 Career

Data analysts and statisticians often use ordered factors to correctly analyze and visualize ordered categorical data.

1

Create the ratings vector

Create a character vector called ratings with these exact values in order: 'Low', 'High', 'Medium', 'Low', 'High'

R Programming

# Create the ratings vector
# Your code here

Need a hint?

Use the c() function to combine values into a vector.

2

Create the ordered factor

Create an ordered factor called ordered_ratings from the ratings vector using factor() with levels 'Low', 'Medium', 'High' in that order and set ordered = TRUE

R Programming

ratings <- c('Low', 'High', 'Medium', 'Low', 'High')
# Create the ordered factor ordered_ratings
# Your code here

Need a hint?

Use the factor() function with levels and ordered = TRUE arguments.

3

Print the structure of the ordered factor

Use str() to print the structure of the ordered_ratings ordered factor

R Programming

ratings <- c('Low', 'High', 'Medium', 'Low', 'High')
ordered_ratings <- factor(ratings, levels = c('Low', 'Medium', 'High'), ordered = TRUE)
# Print the structure of ordered_ratings
# Your code here

Need a hint?

The str() function shows the internal structure of an object.

4

Print the levels of the ordered factor

Use levels() to print the levels of the ordered_ratings ordered factor

R Programming

ratings <- c('Low', 'High', 'Medium', 'Low', 'High')
ordered_ratings <- factor(ratings, levels = c('Low', 'Medium', 'High'), ordered = TRUE)
str(ordered_ratings)
# Print the levels of ordered_ratings
# Your code here

Need a hint?

The levels() function returns the levels of a factor as a character vector.