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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-4 section-1

Each section contains 100 MCQs on Data Structures in R Programming .
31
Which of the following code represents internal representation of a Date object?
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Answer & Solution
Answer: Option B
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32
Point out the wrong statement?
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Answer & Solution
Answer: Option A
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33
What will be the output of the following R code?
> x <- matrix(1:6, 2, 3)
> x[1, ]
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Answer & Solution
Answer: Option A
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34
Which of the following extracts first four element from the following R vector?
> x <- c("a", "b", "c", "c", "d", "a")
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Answer & Solution
Answer: Option B
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35
The . . . . . . . . function is used to generate summary statistics from the data frame within strata defined by a variable.
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Answer & Solution
Answer: Option C
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36
Main way to read the data back in (parsing it) using the function.
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Answer & Solution
Answer: Option D
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37
If we want to save individual R objects to a file, we use the . . . . . . . . function.
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Answer & Solution
Answer: Option A
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38
load() is used for . . . . . . . .
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Answer & Solution
Answer: Option A
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39
What will be the output of the following R code?
> x <- 1:4
> y <- 6:9
> z <- x + y
> z
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Answer & Solution
Answer: Option A
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40
Which of the following extracts first element from the following R list?
> x <- list(foo = 1:4, bar = 0.6)
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Answer & Solution
Answer: Option A
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