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. In which statement terminates the loop statement and transfers execution to the statement immediately following the loop?

goto
switch
break
label

2. Which loop executes a sequence of statements multiple times and abbreviates the code that manages the loop variable?

for
while
do-while
repeat

3. Point out the wrong statement?

Multi-line expressions with curly braces are just not that easy to sort through when working on the command line
lappy() loops over a list, iterating over each element in that list
lapply() does not always returns a list
You cannot use lapply() to evaluate a function multiple times each with a different argument

4. Point out the wrong statement?

Setting up a workstation to take full advantage of the customizable features of R is a straightforward thing
q() is used to quit the R program
R has an inbuilt help facility similar to the man facility of UNIX
Windows versions of R have other optional help systems also

5. What will be output for the following code?

> paste("a", "b", se = ":")

a+b
a:b
a-b
None of the above

6. The mapply() function is a multivariate apply of sorts which applies a function in parallel over a set of arguments.

TRUE
FALSE
Can be true or false
Can not say

7. Which of the following true about for loop?

Repeats a statement or group of statements while a given condition is true. It tests the condition before executing the loop body.
it tests the condition at the end of the loop body.
Both A and B
None of the above

8. 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

9. Data Frames are created using the?

frame() function
data.frame() function
data() function
frame.data() function

10. What will be output for the following code?

v <- LETTERS[1]
for ( i in v) {
   print(v)
}

A
A B
A B C
A B C D

Results