R Programming Quiz


Play this quiz that will help you to excel in R certification exams, placements etc. This R programming quiz consist of 10 questions that you need to solve in 10 minutes. We’ve specially designed this quiz so that you can quickly acquaint to the pattern of questions you can be asked in placement drives, certification exams etc. This test enables you to assess your knowledge of R programming.

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R MCQs

Practice R Programming MCQ Questions, which will help you to understand R Programming language and will help in developing statistical softwares.

R Quiz

Try Free R Quiz, to start a quiz you need to login first, after login you will get start quiz button and then by clicking on that you can start quiz. You will get 10 Minutes to answer all questions.

R Quiz

1. Which functions gives the count of levels?

level
levels
nlevels
nlevel

2. What will be output for the following code?

v <- TRUE
print(class(v))

logical
Numeric
Integer
Complex

3. Which of the following is valid body of split function?

function (x, f)
function (x, f, drop = FALSE, …)
function (x, drop = FALSE, …)
function (drop = FALSE, …)

4. How will you check if an element is present in a vector?

Match()
Dismatch()
Mismatch()
Search()

5. .library() is not useful when developing a package since you have to install the package first.

TRUE
FALSE
Can be true or false
Can not say

6. Which of the following is an R package for the exploratory analysis of genetic and genomic data?

adeg
adegenet
anc
abd

7. Which of the following contains functions for processing uniaxial minute-to-minute accelerometer data?

accelerometry
abc
abd
anc

8. What will be the output of the following R code?

> x <- vector(""numeric"", length = 10)
> x

1 0
0 0 0 0 0 0 0 0 0 0
0 1
0 0 1 1 0 1 1 0

9. What will be the output of the following R code?

> m <- matrix(nrow = 2, ncol = 3)
 > dim(m)

3 3
3 2
2 3
2 2

10. What will be the output of log (-5.8) when executed on R console?

NA
NAN
0.213
Error

Results