Factor levels

Accessing the unique levels of your factor is simple enough by using the levels() function. You can also use this to rename your factor levels!

credit_factor

[1] AAA AA  A   BBB AA  BBB A  
Levels: A AA AAA BBB

levels(credit_factor)

[1] "A"   "AA"  "AAA" "BBB"

levels(credit_factor) <- c("1A", "2A", "3A", "3B")

credit_factor

[1] 3A 2A 1A 3B 2A 3B 1A
Levels: 1A 2A 3A 3B

The credit_factor variable you created in the last exercise is available in your workspace.

This exercise is part of the course

Introduction to R for Finance

View Course

Exercise instructions

Use levels() on credit_factor to identify the unique levels.
Using the same "1A", "2A" notation as in the example, rename the levels of credit_factor. Pay close attention to the level order!
Print the renamed credit_factor.

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

# Identify unique levels


# Rename the levels of credit_factor


# Print credit_factor

Edit and Run Code