mode(1)
mode(1L)
mode(3.24)
mode(TRUE)
mode('홍길동')
mode(3+4i)
typeof(1)
typeof(2.3)
typeof(1L)
typeof(1)
typeof(TRUE)
typeof('홍길동')
typeof(3+4i)

-------------------------------------
> mode(1)
[1] "numeric"
> mode(1L)
[1] "numeric"
> mode(3.24)
[1] "numeric"
> mode(1L)
[1] "numeric"
> mode(TRUE)
[1] "logical"
> mode('홍길동')
[1] "character"
> mode(3+4i)
[1] "complex"
> typeof(1)
[1] "double"
> typeof(2.3)
[1] "double"
> typeof(1L)
[1] "integer"
> typeof(1)
[1] "double"
> typeof(TRUE)
[1] "logical"
> typeof('홍길동')
[1] "character"
> typeof(3+4i)
[1] "complex"
>