ExamVeda
Login
Home
41
Columns can be arranged in descending order too by using the special . . . . . . . . operator.
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
42
Point out the wrong statement?
Discuss
Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board
43
Which of the following is used for reading tabular data?
> y <- data.frame(a = 1, b = "a")
> dput(y, file = "y.R")
> new.y <- dget("y.R")
> new.y
Discuss
Answer & Solution
Answer: Option A
No explanation is given for this question. Let's Discuss on Board
44
. . . . . . . . is used for outputting a textual representation of an R object.
Discuss
Answer & Solution
Answer: Option A
No explanation is given for this question. Let's Discuss on Board
45
Which of the following function is identical to read .table?
Discuss
Answer & Solution
Answer: Option A
No explanation is given for this question. Let's Discuss on Board
46
Point out the correct statement?
Discuss
Answer & Solution
Answer: Option A
No explanation is given for this question. Let's Discuss on Board
47
What will be the output of the following R code?
> x <- Sys.time()
> class(x)
Discuss
Answer & Solution
Answer: Option A
No explanation is given for this question. Let's Discuss on Board
48
. . . . . . . . function is similar to the existing subset() function in R but is quite a bit faster.
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
49
Which of the following is used for reading in saved workspaces?
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
50
What will be the output of the following R code?
> x <- 1:4
> x > 2
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board