[R기초] 데이터의 유형(Type of Data)

2.1 Character : 문자형

> x1 <- 'Love is choice.'
> x1
[1] "Love is choice."
> mode(x1)
[1] "character"

2.2 Numeric   : 수치형, integer(정수), double(실수)

[1] 10
> x3
[1] 10.5
> mode(x3)
[1] "numeric"
> mode(x4)
[1] "numeric"

2.3 Logical   : 논리형, TRUE, FALSE, T, F 

> x4 <- TRUE
> x5 <- FALSE
> mode(x4)
[1] "logical"
> mode(x5)
[1] "logical"

2.4 데이터의 유형 알아내기

mode(data)

is.xxxxx(data)

> mode(x1)
[1] "character"
> is.character(x1)
[1] TRUE
> is.numeric(x1)
[1] FALSE
> is.numeric(x3)
[1] TRUE
> is.logical(x5)
[1] TRUE