Logical (boolean) type in R Programming - Mini Project: Build & Apply

Working with Logical (Boolean) Type in R

📖 Scenario: You are analyzing survey data where participants answered yes or no questions. The answers are stored as logical values: TRUE for yes and FALSE for no.

🎯 Goal: You will create a logical vector representing answers, set a threshold for counting positive answers, count how many answers are TRUE, and then print the count.

📋 What You'll Learn

Create a logical vector called answers with the exact values TRUE, FALSE, TRUE, TRUE, FALSE

Create a variable called threshold and set it to 2

Use a variable called true_count to count how many TRUE values are in answers

Print the value of true_count

💡 Why This Matters

🌍 Real World

Logical (boolean) values are used in surveys, decision making, and filtering data based on yes/no or true/false answers.

💼 Career

Understanding logical types helps in data analysis, programming conditions, and controlling program flow in many jobs like data science and software development.

1

Create the logical vector

Create a logical vector called answers with these exact values: TRUE, FALSE, TRUE, TRUE, FALSE

R Programming

# Create the logical vector answers with TRUE, FALSE, TRUE, TRUE, FALSE
# Your code here

Need a hint?

Use the c() function to create a vector of logical values.

2

Set the threshold value

Create a variable called threshold and set it to 2

R Programming

answers <- c(TRUE, FALSE, TRUE, TRUE, FALSE)
# Create the variable threshold and set it to 2
# Your code here

Need a hint?

Just assign the number 2 to the variable threshold.

3

Count the TRUE values

Create a variable called true_count that counts how many TRUE values are in the answers vector

R Programming

answers <- c(TRUE, FALSE, TRUE, TRUE, FALSE)
threshold <- 2
# Count how many TRUE values are in answers and store in true_count
# Your code here

Need a hint?

Use the sum() function because TRUE counts as 1 and FALSE as 0.

4

Print the count of TRUE values

Print the value of true_count

R Programming

answers <- c(TRUE, FALSE, TRUE, TRUE, FALSE)
threshold <- 2
true_count <- sum(answers)
# Print true_count
# Your code here

Need a hint?

Use the print() function to show the count.