loads: no visible global function definition for 'untar'
saves: no visible global function definition for 'tar'
Undefined global functions or variables:
  tar untar
Consider adding
  importFrom("utils", "tar", "untar")
to your NAMESPACE file.
loads: no visible global function definition for ‘untar’
saves: no visible global function definition for ‘tar’
Undefined global functions or variables:
  tar untar
Consider adding
  importFrom("utils", "tar", "untar")
to your NAMESPACE file.
loads: no visible global function definition for ‘untar’
saves: no visible global function definition for ‘tar’
Undefined global functions or variables:
  tar untar
Consider adding
  importFrom("utils", "tar", "untar")
to your NAMESPACE file.
loads: no visible global function definition for ‘untar’
saves: no visible global function definition for ‘tar’
Undefined global functions or variables:
  tar untar
Consider adding
  importFrom("utils", "tar", "untar")
to your NAMESPACE file.
loads: no visible global function definition for 'untar'
saves: no visible global function definition for 'tar'
Undefined global functions or variables:
  tar untar
Consider adding
  importFrom("utils", "tar", "untar")
to your NAMESPACE file.
loads: no visible global function definition for ‘untar’
saves: no visible global function definition for ‘tar’
Undefined global functions or variables:
  tar untar
Consider adding
  importFrom("utils", "tar", "untar")
to your NAMESPACE file.
loads: no visible global function definition for ‘untar’
saves: no visible global function definition for ‘tar’
Undefined global functions or variables:
  tar untar
Consider adding
  importFrom("utils", "tar", "untar")
to your NAMESPACE file.
loads: no visible global function definition for ‘untar’
saves: no visible global function definition for ‘tar’
Undefined global functions or variables:
  tar untar
Consider adding
  importFrom("utils", "tar", "untar")
to your NAMESPACE file.
loads: no visible global function definition for ‘untar’
saves: no visible global function definition for ‘tar’
Undefined global functions or variables:
  tar untar
Consider adding
  importFrom("utils", "tar", "untar")
to your NAMESPACE file.
loads: no visible global function definition for 'untar'
saves: no visible global function definition for 'tar'
Undefined global functions or variables:
  tar untar
Consider adding
  importFrom("utils", "tar", "untar")
to your NAMESPACE file.
loads: no visible global function definition for ‘untar’
saves: no visible global function definition for ‘tar’
Undefined global functions or variables:
  tar untar
Consider adding
  importFrom("utils", "tar", "untar")
to your NAMESPACE file.
loads: no visible global function definition for ‘untar’
saves: no visible global function definition for ‘tar’
Undefined global functions or variables:
  tar untar
Consider adding
  importFrom("utils", "tar", "untar")
to your NAMESPACE file.
loads: no visible global function definition for 'untar'
saves: no visible global function definition for 'tar'
Undefined global functions or variables:
  tar untar
Consider adding
  importFrom("utils", "tar", "untar")
to your NAMESPACE file.