R interview questions part 28
R interview questions part 28
Take as many assements as you can to improve your validate your skill rating
Total Questions: 20
1. Which Package contains most fundamental functions to run R?
Correct Answer is : base
2. Point out the wrong statement :
Correct Answer is : S’s base graphics system allows for very fine control over essentially every aspect of a plot or graph
3. Which of the following is a base package for R language?
Correct Answer is : tools
4. Which of the following is “Recommended” package in R?
Correct Answer is : spatial
5. What is the output of getOption(“defaultPackages”) in R studio?
Correct Answer is : Shows default packages in R
6. Advanced users can write ___ code to manipulate R objects directly.
Correct Answer is : C, C++
7. Which of the following is used for Statistical analysis in R language?
Correct Answer is : RStudio
8. What is the output of the following R program? r<-0:10 r[2]
Correct Answer is : 1
9. What is the output of the following R program? r<-0:10 r[2]
Correct Answer is : 1
10. Which of the following operator is used to create integer sequences?
Correct Answer is : :
11. Which of the following operator is used to create integer sequences?
Correct Answer is : :
12. What will be the output of the following R program? y<-0:5 vector(y) y[3]
Correct Answer is : Error in vector(y): invalid ‘mode’ argument
13. What will be the output of the following R program? y<-0:5 vector(y) y[3]
Correct Answer is : Error in vector(y): invalid ‘mode’ argument
14. In R language, a vector is defined that it can only contain objects of the ________
Correct Answer is : Same class
15. In R language, a vector is defined that it can only contain objects of the ________
Correct Answer is : Same class
16. A list is represented as a vector but can contain objects of ___________
Correct Answer is : Different class
17. A list is represented as a vector but can contain objects of ___________
Correct Answer is : Different class
18. How can we define ‘undefined value’ in R language?
Correct Answer is :
19. How can we define ‘undefined value’ in R language?
Correct Answer is :
20. What is NaN called?
Correct Answer is : Not a Number
