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> nested_list
$m
[1] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

$n
$n[[1]]
[1] "a"

$n[[2]]
[1] 1 2 3

$p
$p$x
[1] 1 2 3 4 5 6 7 8 9 10

$p$y
[1] "a" "b"

$q
$q$x
[1] 0 1 2 3 4 5 6 7 8 9

$q$y
[1] "c" "d"

좀 더 간결하게 보고 싶다면 str() 함수를 사용하자.

> str(nested_list)
List of 4
$ m: int [1:15] 1 2 3 4 5 6 7 8 9 10 ...
$ n:List of 2
..$ : chr "a"
..$ : num [1:3] 1 2 3
$ p:List of 2
..$ x: int [1:10] 1 2 3 4 5 6 7 8 9 10
..$ y: chr [1:2] "a" "b"
$ q:List of 2
..$ x: int [1:10] 0 1 2 3 4 5 6 7 8 9
..$ y: chr [1:2] "c" "d"

104

r교과서_07.indd 104 2020-04-09 오후 4:21:28