Exercise v3.0

×

×

Correct!

Use the correct function to find the number of characters in the str variable:

str <- "Hello World!" @(5)(str)

str <- "Hello World!" nchar(str)

Not Correct

Click here to try again.

Correct!

Go to w3schools.com

Reset Score

Close This Menu

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

×

Reset the Score?

This will reset the score of ALL 40 exercises.

Are you sure you want to continue?

×

Congratulations!

You have finished all 40 R exercises.

Share your score: