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Welcome to the Basics of R Programming Language MCQs Page

Dive deep into the fascinating world of Basics of R Programming Language with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Basics of R Programming Language, a crucial aspect of R Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Basics of R Programming Language, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within R Programming.

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Check out the MCQs below to embark on an enriching journey through Basics of R Programming Language. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of R Programming.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Basics of R Programming Language. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Basics of R Programming Language MCQs | Page 3 of 8

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Q21.
A single element of a character vector is referred as ________

a.

Character string

b.

String

c.

Data strings

d.

Raw data

Discuss
Answer: (a).Character string
Q22.
R files has an extension ______

a.

.R

b.

.S

c.

.Rp

d.

.c

Discuss
Answer: (a)..R
Q23.
If the code is stored in the external file, which of the following function is used to call them to a working directory?

a.

exec()

b.

source()

c.

execute()

d.

sourcefile()

Discuss
Answer: (b).source()
Q24.
Advanced programmers can write ______ code to manipulate R objects.

a.

Python

b.

Java

c.

C

d.

Java Script

Discuss
Answer: (c).C
Q25.
In ________ Insightful purchased the S language from Lucent for $2 million.

a.

2002

b.

2003

c.

2004

d.

2005

Discuss
Answer: (c).2004
Q26.
Functionality of R is divided into a number of __________

a.

Functions

b.

Domains

c.

Packages

d.

Files

Discuss
Answer: (a).Functions
Q27.
Dataframes can be converted into a matrix by calling the following function data ______

a.

matr()

b.

matrix()

c.

matrixf()

d.

matrixfunc()

Discuss
Answer: (b).matrix()
Q28.
What will be the output of the following R code? 
x <- (“a”, “b”)
       as.logical(x)

a.

a b

b.

“a” “b”

c.

1 1

d.

Error

Discuss
Answer: (d).Error
Q29.
What will be the output of the following R code? 
a <- (“a” , “b”)
      mode(a)

a.

Character

b.

Numeric

c.

Complex

d.

Integer

Discuss
Answer: (a).Character
Q30.
Which of the following is not an object of R?

a.

calls

b.

expressions

c.

strings

d.

names

Discuss
Answer: (c).strings
Page 3 of 8

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