R Language Quiz 14

The post is about R Language Quiz with Answers. The quiz covers, MCQs about Data Structure, Data Analysis in R, and Some Basics of R Programming Languages. Let us start with the R Programming MCQs Quiz.

Multiple Choice Questions about R Language with Answers

1. What is the function to give names to columns for a matrix?

 
 
 
 

2. The dimension attribute is itself an integer vector having length ——-.

 
 
 
 

3. What function is used to test objects if they are NaN?

 
 
 
 

4. R language has a superficial similarity with ———.

 
 
 
 

5. R files have an extension ———-.

 
 
 
 

6. What is NaN called?

 
 
 
 

7. What is the meaning of “<-” in R

 
 
 
 

8. How one can create an integer say 5?

 
 
 
 

9. Dataframes can be converted into a matrix by calling the following function data ———-

 
 
 
 

10. Which of the following is not an R object?

 
 
 
 

11. Matrices can be created by row-binding using the function

 
 
 
 

12. What is the output of the following

d <- diag(5, nrow = 2, ncol = 2); d

 
 
 
 

13. Which of the following can be used to display the names of (most of) the objects that are currently stored within R?

 
 
 
 

14. A ——– is a variable that holds one value at a time

 
 
 
 

15. what is the output of the following

y <- c(TRUE, 2)

 
 
 
 

16. Which of them is not a basic datatype in R?

 
 
 
 

17. what is the class of object $y$

y <- c(2, "t")

 
 
 
 

18. What is the class of the object $y$

y <- c(FALSE, 2)

 
 
 
 

19. Which of the following is an alternative to ‘?’ symbol ———.

 
 
 
 

20. How many atomic vector types does R have

 
 
 
 

Question 1 of 20

R Language Quiz with Answers

  • What is NaN called?
  • what is the output of the following y <- c(TRUE, 2)
  • what is the class of object $y$ y <- c(2, “t”)
  • What is the class of the object $y$ y <- c(FALSE, 2)
  • Which of them is not a basic datatype in R?
  • How one can create an integer say 5?
  • The dimension attribute is itself an integer vector having length ——-.
  • Matrices can be created by row-binding using the function
  • What function is used to test objects if they are NaN?
  • What is the function to give names to columns for a matrix?
  • How many atomic vector types does R have
  • What is the output of the following d <- diag(5, nrow = 2, ncol = 2); d
  • Which of the following can be used to display the names of (most of) the objects that are currently stored within R?
  • A ——– is a variable that holds one value at a time
  • What is the meaning of “<-” in R
  • Which of the following is not an R object?
  • Dataframes can be converted into a matrix by calling the following function data ———-
  • R files have an extension ———-.
  • R language has a superficial similarity with ———.
  • Which of the following is an alternative to ‘?’ symbol ———.
R Language Quiz with Answers

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