R dim()

1 개요

R dim()

• "dimension"
• 객체의 차원을 조회하거나 설정하는 R 함수

1:6
## [1] 1 2 3 4 5 6
class( 1:6 )
## [1] "numeric"
dim( 1:6 )
## NULL

matrix(1:6, 2, 3)
##      [,1] [,2] [,3]
## [1,]    1    3    5
## [2,]    2    4    6
class( matrix(1:6, 2, 3) )
## [1] "matrix"
dim( matrix(1:6, 2, 3) )
## [1] 2 3

diag(2)
##      [,1] [,2]
## [1,]    1    0
## [2,]    0    1
class( diag(2) )
## [1] "matrix"
dim( diag(2) )
## [1] 2 2

2 같이 보기

• R matrix()
• R diag()
• R ncol()
• R nrow()
• R dimnames()

3 참고

• https://www.rdocumentation.org/packages/base/versions/3.5.3/topics/dim