Q88
Which of the following code extracts 1st element of the 2nd element? > x <- list(a = list(10, 12, 14), b = c(3.14, 2.81))
A.
x[[c(2, 1)]]
AnswerB.
x[[c(1, 2)]]
C.
x[[c(2, 1,1)]]
D.
x[[(2, 2,1)]]
Answer: Option A
Solution
Answer: Option A
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