While loop in R Programming - Mini Project: Build & Apply

Using a While Loop in R

📖 Scenario: You are helping a cashier count the total number of coins collected in a jar. Each coin is worth 1 unit. The cashier wants to keep adding coins until the total reaches at least 10 units.

🎯 Goal: Build a program that uses a while loop to count coins until the total is 10 or more.

📋 What You'll Learn

Create a variable total_coins starting at 0

Create a variable coins_to_add set to 1

Use a while loop with the condition total_coins < 10

Inside the loop, add coins_to_add to total_coins

Print the final value of total_coins

💡 Why This Matters

🌍 Real World

Counting items or accumulating totals until a goal is reached is common in cash registers, inventory systems, and games.

💼 Career

Understanding loops helps automate repetitive tasks and process data efficiently in many programming jobs.

1

Create the initial coin count variable

Create a variable called total_coins and set it to 0.

R Programming

# Create a variable called total_coins and set it to 0
# Your code here

Need a hint?

Use the assignment operator <- to set total_coins to 0.

2

Set the number of coins to add each time

Create a variable called coins_to_add and set it to 1.

R Programming

total_coins <- 0
# Create a variable called coins_to_add and set it to 1
# Your code here

Need a hint?

Use coins_to_add <- 1 to set the value.

3

Use a while loop to add coins until total is 10 or more

Write a while loop with the condition total_coins < 10. Inside the loop, add coins_to_add to total_coins.

R Programming

total_coins <- 0
coins_to_add <- 1
# Write a while loop with condition total_coins < 10
# Inside the loop add coins_to_add to total_coins
# Your code here

Need a hint?

Use while (total_coins < 10) { ... } and update total_coins inside.

4

Print the final total of coins

Write print(total_coins) to display the final total number of coins.

R Programming

total_coins <- 0
coins_to_add <- 1
while (total_coins < 10) {
  total_coins <- total_coins + coins_to_add
}
# Print the total_coins
# Your code here

Need a hint?

Use the print() function to show the value of total_coins.