pkgmaker (version 0.10.1)

is_something: Testing Object Type

Description

Testing Object Type

Tests if a variable is exactly NA (logical, character, numeric or integer)

Tests if a variable is exactly FALSE

Tests if a variable is a single number

Tests if a variable is a single real number

Tests if an object is a single integer

Test if an object is a single character string

Tests if a filename is a directory

Tests if a filename is a file

Tests if an object has names

Usage

isNA(x)
  isFALSE(x)
  isNumber(x)
  isReal(x)
  isInteger(x)
  isString(x)
  is.dir(x)
  is.file(x)
  hasNames(x, all = FALSE)

Arguments

x

an R object

all

logical that indicates if the object needs all names non empty

Value

• TRUE or FALSE

See Also

isTRUE