Repeat loop with break in R Programming - Mini Project: Build & Apply

Repeat Loop with Break in R

📖 Scenario: You are counting the number of times you toss a coin until you get heads.

🎯 Goal: Build a program that uses a repeat loop to simulate tossing a coin repeatedly and stops when it lands on heads.

📋 What You'll Learn

Create a variable tosses to count the number of coin tosses

Create a variable coin to store the result of each toss

Use a repeat loop to simulate tossing the coin

Use break to stop the loop when the coin lands on heads

Print the total number of tosses after the loop ends

💡 Why This Matters

🌍 Real World

Counting attempts until success is common in games, simulations, and quality testing.

💼 Career

Understanding loops and breaking conditions is essential for automating tasks and controlling program flow.

1

Create the toss counter

Create a variable called tosses and set it to 0 to count the number of coin tosses.

R Programming

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

Need a hint?

Use the assignment operator <- to create the variable.

2

Set up the coin toss variable

Create a variable called coin and set it to an empty string "" to store the result of each toss.

R Programming

tosses <- 0
# Create a variable called coin and set it to an empty string ""
# Your code here

Need a hint?

Use "" to represent an empty string in R.

3

Write the repeat loop with break

Write a repeat loop that does the following:
1. Increase tosses by 1.
2. Randomly assign coin to either "Heads" or "Tails" using sample(c("Heads", "Tails"), 1).
3. Use if to check if coin is "Heads" and use break to stop the loop if true.

R Programming

tosses <- 0
coin <- ""
# Write a repeat loop that increments tosses, assigns coin, and breaks if coin is "Heads"
# Your code here

Need a hint?

Use sample(c("Heads", "Tails"), 1) to simulate a coin toss.

4

Print the total tosses

Write a print statement to display the total number of tosses stored in tosses.

R Programming

tosses <- 0
coin <- ""
repeat {
  tosses <- tosses + 1
  coin <- sample(c("Heads", "Tails"), 1)
  if (coin == "Heads") {
    break
  }
}
# Print the total number of tosses
# Your code here

Need a hint?

Use print(tosses) to show the number of tosses.