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Data Structures in R Programming MCQ question and answer with solution | R Programming MCQs

Learn Data Structures in R Programming MCQ Questions and answers with easy and logical explanations in R Programming. Data Structures in R Programming MCQ question provides all type of technical mcq questions which is important for technical exams, campus exams and other entrance examination. Page-6 section-1

Each section contains 100 MCQs on Data Structures in R Programming .
51
Which of the following function is similar to summarize?
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Answer & Solution
Answer: Option C
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52
The . . . . . . . . operator is used to connect multiple verb actions together into a pipeline.
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Answer & Solution
Answer: Option A
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53
What will be the output of the following R code?
> x <- as.Date("1970-01-01")
> x
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Answer & Solution
Answer: Option A
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54
. . . . . . . . add new variables/columns or transform existing variables.
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Answer & Solution
Answer: Option A
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55
Connections to text files can be created with the . . . . . . . . function.
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Answer & Solution
Answer: Option D
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56
.rda extension used when saving data with function . . . . . . . .
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Answer & Solution
Answer: Option C
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57
What will be the output of the following R code?
> x <- matrix(1:4, 2, 2)
> y <- matrix(rep(10, 4), 2, 2)
> x * y
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Answer & Solution
Answer: Option A
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58
Which of the following R code creates a connection to 'foo.txt'?
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Answer & Solution
Answer: Option A
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59
The dplyr package can be installed from GitHub using the . . . . . . . . package.
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Answer & Solution
Answer: Option B
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60
Point out the wrong statement?
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Answer & Solution
Answer: Option C
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