Data frame creation in R Programming - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a data frame with columns 'Name' and 'Age'.

R Programming

df <- data.frame(Name = c("Alice", "Bob"), Age = c(25, [1]))

Drag options to blanks, or click blank then click option'

A30

B"30"

CAge

Dc(30)

Attempts:

3 left

💡 Hint

Common Mistakes

Putting quotes around numbers, which makes them strings.

Using a variable name instead of a value.

The Age column should contain numeric values. Using 30 (without quotes) correctly assigns the age as a number.

2fill in blank

medium

Complete the code to create a data frame with three columns: 'ID', 'Score', and 'Passed'.

R Programming

df <- data.frame(ID = 1:3, Score = c(88, 92, 79), Passed = c(TRUE, [1], FALSE))

Drag options to blanks, or click blank then click option'

A1

B"TRUE"

CTRUE

DFALSE

Attempts:

3 left

💡 Hint

Common Mistakes

Using strings "TRUE" or "FALSE" instead of logical values.

Using numeric 1 or 0 instead of TRUE or FALSE.

The 'Passed' column should contain logical values TRUE or FALSE without quotes.

3fill in blank

hard

Fix the error in the code to create a data frame with columns 'Product' and 'Price'.

R Programming

df <- data.frame(Product = c("Pen", "Notebook"), Price = c(1.5, [1]))

Drag options to blanks, or click blank then click option'

A2.0

B"2.0"

Cprice

Dc(2.0)

Attempts:

3 left

💡 Hint

Common Mistakes

Using quotes around numbers.

Using variable names instead of values.

The Price column should contain numeric values without quotes or extra c().

4fill in blank

hard

Fill both blanks to create a data frame with columns 'City' and 'Population' where population is numeric.

R Programming

df <- data.frame(City = c("NY", "LA", "SF"), Population = c([1], [2], 3000000))

Drag options to blanks, or click blank then click option'

A8000000

B"4000000"

C3000000

Dc(3000000)

Attempts:

3 left

💡 Hint

Common Mistakes

Using strings for numbers.

Using c() inside c(), which causes errors.

Population values should be numeric without quotes or extra c().

5fill in blank

hard

Fill all three blanks to create a data frame with columns 'Name', 'Age', and 'Member' where 'Member' is logical.

R Programming

df <- data.frame(Name = c("Anna", [1], "John"), Age = c(28, 34, [2]), Member = c(TRUE, [3], FALSE))

Drag options to blanks, or click blank then click option'

A"Mike"

B30

CFALSE

D"30"

Attempts:

3 left

💡 Hint

Common Mistakes

Using numbers as strings for Age.

Using strings for logical values in Member.

Not quoting names.

Name values are strings, Age values are numeric, and Member values are logical TRUE or FALSE without quotes.