Control Structures In R Programming - Study Mode
[#86] How missing values and impossible values are represented in R language?
Correct Answer
(C) NA & NAN
[#87] What will be the output of the following R code? > x <- list(a = 1:4, b = rnorm(10), c = rnorm(20, 1), d = rnorm(100, 5))
> lapply(x, mean)
Correct Answer
(B) $a
[1] 2.5
$b
[1] 0.248845
$c
[1] 0.9935285
Loop Functions 90
$d
[1] 5.051388
[#88] The . . . . . . . . function takes a vector or other objects and splits it into groups determined by a factor or list of factors.
Correct Answer
(C) split()
[#89] The . . . . . . . . function is used to plot negative likelihood.
Correct Answer
(A) plot()
[#90] lappy functions takes . . . . . . . . arguments in R language.
Correct Answer
(C) four