integer {base}R Documentation

Integer Vectors

Description

Creates or tests for objects of type "integer".

Usage

integer(length = 0)
as.integer(x, ...)
is.integer(x)

Value

integer creates a integer vector of the specified length. Each element of the vector is equal to 0. Integer vectors exist so that data can be passed to C or Fortran code which expects them.
as.integer attempts to coerce its argument to be of integer type. The answer will be NA unless the coercion succeeds. Real values larger in modulus than the largest integer are coerced to NA (unlike S which gives the most extreme integer of the same sign).
is.integer returns TRUE or FALSE depending on whether its argument is of integer type or not.