1. Basic R

Exercise 1: Basic Arithmetic

Calculate the sum of 15 and 30.

Solution:

Hint

Use the + operator to add two numbers like a machine calculator.

Solution:

15 + 30

Exercise 2: Variable Assignment

Assign the value 100 to a variable named my_variable and print it.

Hint

Use the <- (or =) operator to assign a value to a variable.

Solution:

# Assign value to a variable
my_variable <- 100

# or
my_variable = 100

# Print the variable
my_variable

Exercise 3: Creating a Vector

Create a vector named my_vector containing the numbers 1, 2, 3, 4, and 5.

Hint

Use the c() function to create a vector.

Tips

Alternatively use the : function to create a vector.

Solution:

# Create a vector
c(1, 2, 3, 4, 5)

# or
1:5

Exercise 4: Basic Function Usage

Find the mean of the numbers 10, 20, 30, 40, and 50.

Hint

Use the mean() function to calculate the average of a set of numbers.

Solution:

# Calculate the mean
numbers <- c(10, 20, 30, 40, 50)
mean(numbers)

Exercise 5: Conditional Statement

Write a conditional statement that checks if a number x is greater than 10. If it is, print “Greater than 10”; otherwise, print “10 or less”.

Hint

Use an if statement to perform a conditional check.

Tip

Solution:

x <- 12

# Conditional statement
if (x > 10) {
  print("Greater than 10")
} else {
  print("10 or less")
}