Assignment operators in R Programming - Mini Project: Build & Apply

Assignment Operators in R

📖 Scenario: You are helping a small bakery keep track of the number of cookies they bake each day. You will use assignment operators in R to store and update the number of cookies.

🎯 Goal: Learn how to use assignment operators in R to create and update variables that hold numbers.

📋 What You'll Learn

Create a variable using the left assignment operator

Create a variable using the right assignment operator

Update a variable by adding to its current value using the assignment operator

Print the final value of the variable

💡 Why This Matters

🌍 Real World

Tracking daily production numbers helps businesses understand their output and plan better.

💼 Career

Knowing how to assign and update variables is a basic skill for data analysis and programming tasks.

1

Create a variable with the left assignment operator

Create a variable called cookies_day1 and assign the value 50 using the left assignment operator <-.

R Programming

# Create the variable cookies_day1 with value 50 using <-
cookies_day1 <- 50

Need a hint?

Use <- to assign values in R, like variable <- value.

2

Create a variable with the right assignment operator

Create a variable called cookies_day2 and assign the value 60 using the right assignment operator ->.

R Programming

cookies_day1 
60 -> cookies_day2

Need a hint?

The right assignment operator -> assigns the value on the left to the variable on the right.

3

Update a variable by adding to its current value

Add 20 to the variable cookies_day1 using the assignment operator like cookies_day1 <- cookies_day1 + 20.

R Programming

cookies_day1  cookies_day2
# Add 20 to cookies_day1 using assignment
cookies_day1 <- cookies_day1 + 20

Need a hint?

In R, += is not supported. Use cookies_day1 <- cookies_day1 + 20.

4

Print the final value of the variable

Print the value of cookies_day1 using the print() function.

R Programming

cookies_day1  cookies_day2
cookies_day1 <- cookies_day1 + 20
# Print the value of cookies_day1
print(cookies_day1)

Need a hint?

Use print(variable) to show the value in R.