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Correct!

Exercise:

Comments in R are written with a special character. Insert the missing part:

# This is a comment "Hello World!"

Not Correct

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Correct!

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w3exercise_input_no_0
 This is a comment
"Hello World!"

R Syntax

Exercise 1 Exercise 2 Exercise 3 Go to R Syntax Tutorial

R Variables

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Exercise 5 Go to R Variables Tutorial

R Data Types

Exercise 1 Exercise 2 Go to R Data Types Tutorial

R Math

Exercise 1 Exercise 2 Go to R Math Tutorial

R Strings

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Go to R Strings Tutorial

R Booleans

Exercise 1 Exercise 2 Exercise 3 Go to R Booleans Tutorial

R Operators

Exercise 1 Exercise 2 Exercise 3 Go to R Operators Tutorial

R If...Else

Exercise 1 Exercise 2 Exercise 3 Go to R If...Else Tutorial

R Loops

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Go to R Loops Tutorial

R Functions

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Go to R Functions Tutorial

R Data Structures

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Exercise 5 Exercise 6 Exercise 7 Go to R Data Structures Tutorial