plot.treeperm: no visible global function definition for 'hist'
plot.treeperm: no visible global function definition for 'points'
plot.treeperm: no visible global function definition for 'text'
treeperm.formula: no visible global function definition for
  'model.frame'
treeperm.formula: no visible global function definition for
  'model.response'
Undefined global functions or variables:
  hist model.frame model.response points text
Consider adding
  importFrom("graphics", "hist", "points", "text")
  importFrom("stats", "model.frame", "model.response")
to your NAMESPACE file.
plot.treeperm: no visible global function definition for ‘hist’
plot.treeperm: no visible global function definition for ‘points’
plot.treeperm: no visible global function definition for ‘text’
treeperm.formula: no visible global function definition for
  ‘model.frame’
treeperm.formula: no visible global function definition for
  ‘model.response’
Undefined global functions or variables:
  hist model.frame model.response points text
Consider adding
  importFrom("graphics", "hist", "points", "text")
  importFrom("stats", "model.frame", "model.response")
to your NAMESPACE file.
plot.treeperm: no visible global function definition for ‘hist’
plot.treeperm: no visible global function definition for ‘points’
plot.treeperm: no visible global function definition for ‘text’
treeperm.formula: no visible global function definition for
  ‘model.frame’
treeperm.formula: no visible global function definition for
  ‘model.response’
Undefined global functions or variables:
  hist model.frame model.response points text
Consider adding
  importFrom("graphics", "hist", "points", "text")
  importFrom("stats", "model.frame", "model.response")
to your NAMESPACE file.
File ‘treeperm/libs/treeperm.so’:
  Found no calls to: ‘R_registerRoutines’, ‘R_useDynamicSymbols’

It is good practice to register native routines and to disable symbol
search.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual.
plot.treeperm: no visible global function definition for ‘hist’
plot.treeperm: no visible global function definition for ‘points’
plot.treeperm: no visible global function definition for ‘text’
treeperm.formula: no visible global function definition for
  ‘model.frame’
treeperm.formula: no visible global function definition for
  ‘model.response’
Undefined global functions or variables:
  hist model.frame model.response points text
Consider adding
  importFrom("graphics", "hist", "points", "text")
  importFrom("stats", "model.frame", "model.response")
to your NAMESPACE file.
File ‘treeperm/libs/treeperm.so’:
  Found no calls to: ‘R_registerRoutines’, ‘R_useDynamicSymbols’

It is good practice to register native routines and to disable symbol
search.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual.
plot.treeperm: no visible global function definition for 'hist'
plot.treeperm: no visible global function definition for 'points'
plot.treeperm: no visible global function definition for 'text'
treeperm.formula: no visible global function definition for
  'model.frame'
treeperm.formula: no visible global function definition for
  'model.response'
Undefined global functions or variables:
  hist model.frame model.response points text
Consider adding
  importFrom("graphics", "hist", "points", "text")
  importFrom("stats", "model.frame", "model.response")
to your NAMESPACE file.
plot.treeperm: no visible global function definition for 'hist'
plot.treeperm: no visible global function definition for 'points'
plot.treeperm: no visible global function definition for 'text'
treeperm.formula: no visible global function definition for
  'model.frame'
treeperm.formula: no visible global function definition for
  'model.response'
Undefined global functions or variables:
  hist model.frame model.response points text
Consider adding
  importFrom("graphics", "hist", "points", "text")
  importFrom("stats", "model.frame", "model.response")
to your NAMESPACE file.
plot.treeperm: no visible global function definition for ‘hist’
plot.treeperm: no visible global function definition for ‘points’
plot.treeperm: no visible global function definition for ‘text’
treeperm.formula: no visible global function definition for
  ‘model.frame’
treeperm.formula: no visible global function definition for
  ‘model.response’
Undefined global functions or variables:
  hist model.frame model.response points text
Consider adding
  importFrom("graphics", "hist", "points", "text")
  importFrom("stats", "model.frame", "model.response")
to your NAMESPACE file.
plot.treeperm: no visible global function definition for ‘hist’
plot.treeperm: no visible global function definition for ‘points’
plot.treeperm: no visible global function definition for ‘text’
treeperm.formula: no visible global function definition for
  ‘model.frame’
treeperm.formula: no visible global function definition for
  ‘model.response’
Undefined global functions or variables:
  hist model.frame model.response points text
Consider adding
  importFrom("graphics", "hist", "points", "text")
  importFrom("stats", "model.frame", "model.response")
to your NAMESPACE file.
plot.treeperm: no visible global function definition for ‘hist’
plot.treeperm: no visible global function definition for ‘points’
plot.treeperm: no visible global function definition for ‘text’
treeperm.formula: no visible global function definition for
  ‘model.frame’
treeperm.formula: no visible global function definition for
  ‘model.response’
Undefined global functions or variables:
  hist model.frame model.response points text
Consider adding
  importFrom("graphics", "hist", "points", "text")
  importFrom("stats", "model.frame", "model.response")
to your NAMESPACE file.
plot.treeperm: no visible global function definition for ‘hist’
plot.treeperm: no visible global function definition for ‘points’
plot.treeperm: no visible global function definition for ‘text’
treeperm.formula: no visible global function definition for
  ‘model.frame’
treeperm.formula: no visible global function definition for
  ‘model.response’
Undefined global functions or variables:
  hist model.frame model.response points text
Consider adding
  importFrom("graphics", "hist", "points", "text")
  importFrom("stats", "model.frame", "model.response")
to your NAMESPACE file.
plot.treeperm: no visible global function definition for 'hist'
plot.treeperm: no visible global function definition for 'points'
plot.treeperm: no visible global function definition for 'text'
treeperm.formula: no visible global function definition for
  'model.frame'
treeperm.formula: no visible global function definition for
  'model.response'
Undefined global functions or variables:
  hist model.frame model.response points text
Consider adding
  importFrom("graphics", "hist", "points", "text")
  importFrom("stats", "model.frame", "model.response")
to your NAMESPACE file.
plot.treeperm: no visible global function definition for ‘hist’
plot.treeperm: no visible global function definition for ‘points’
plot.treeperm: no visible global function definition for ‘text’
treeperm.formula: no visible global function definition for
  ‘model.frame’
treeperm.formula: no visible global function definition for
  ‘model.response’
Undefined global functions or variables:
  hist model.frame model.response points text
Consider adding
  importFrom("graphics", "hist", "points", "text")
  importFrom("stats", "model.frame", "model.response")
to your NAMESPACE file.
plot.treeperm: no visible global function definition for 'hist'
plot.treeperm: no visible global function definition for 'points'
plot.treeperm: no visible global function definition for 'text'
treeperm.formula: no visible global function definition for
  'model.frame'
treeperm.formula: no visible global function definition for
  'model.response'
Undefined global functions or variables:
  hist model.frame model.response points text
Consider adding
  importFrom("graphics", "hist", "points", "text")
  importFrom("stats", "model.frame", "model.response")
to your NAMESPACE file.