R: Examples for 'base::integer'

### ** Examples

## as.integer() truncates:
x <- pi * c(-1:1, 10)
as.integer(x)

[1] -3  0  3 31

is.integer(1) # is FALSE !

[1] FALSE

is.wholenumber <-
    function(x, tol = .Machine$double.eps^0.5)  abs(x - round(x)) < tol
is.wholenumber(1) # is TRUE

[1] TRUE

(x <- seq(1, 5, by = 0.5) )

[1] 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

is.wholenumber( x ) #-->  TRUE FALSE TRUE ...

[1]  TRUE FALSE  TRUE FALSE  TRUE FALSE  TRUE FALSE  TRUE

Examples for 'base::integer'