integer                 package:base                 R Documentation

Integer Vectors

Description:

     Creates or tests for objects of type `"integer"'.

Usage:

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

Arguments:

  length: desired length.

       x: object to be coerced or tested.

     ...: further arguments passed to or from other methods.

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.

