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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-7 section-1

Each section contains 100 MCQs on Data Structures in R Programming .
61
Multiple objects can be de parsed at once and read back using function . . . . . . . .
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Answer & Solution
Answer: Option A
No explanation is given for this question. Let's Discuss on Board
62
What will be the output of the following R code?
> x <- as.Date("2012-03-01")
> y <- as.Date("2012-02-28")
> x-y
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Answer & Solution
Answer: Option B
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63
Which of the following opens connection to gz-compressed text file?
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Answer & Solution
Answer: Option B
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64
What will be the output of the following R code?
> x <- list(foo = 1:4, bar = 0.6)
> x
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Answer & Solution
Answer: Option A
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65
The . . . . . . . . function can be used to select columns of a data frame that you want to focus on.
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Answer & Solution
Answer: Option A
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66
What will be the output of the following R code?
> x <- list(a = list(10, 12, 14), b = c(3.14, 2.81))
> x[[c(1, 3)]]
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Answer & Solution
Answer: Option B
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67
What will be the output of the following R code?
> p <- as.POSIXlt(x)
> names(unclass(p))
> p$wday
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Answer & Solution
Answer: Option A
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68
There is an SQL interface for relational databases via the . . . . . . . . package.
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Answer & Solution
Answer: Option C
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69
dput() output is in the form of . . . . . . . .
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Answer & Solution
Answer: Option A
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70
Unlike writing out a table or CSV file, dump() and dput() preserve the . . . . . . . . so that another user doesn't have to specify the all over again.
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Answer & Solution
Answer: Option A
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