Check if a Number is Whole

Source: R/utils.R

The built-in function is.integer() will check if a number is of the integer class. However, we would usually want a function that can check if a number is a whole number. It is also vectorised over the input.

is_wholenumber(x, tol = .Machine$double.eps^0.5)

Arguments

x

Number to check
tol

tolerance to check the values

Value

A logical vector the same length as x

Examples

is.integer(2)

#> [1] FALSE
is_wholenumber(2)

#> [1] TRUE

is.integer(seq(2, 3, 0.25))

#> [1] FALSE
is_wholenumber(seq(2, 3, 0.25))

#> [1]  TRUE FALSE FALSE FALSE  TRUE