simCCCent : <anonymous>: no visible global function definition for
  'simulate.formula'
Undefined global functions or variables:
  simulate.formula
'LazyData' is specified without a 'data' directory
simCCCent : <anonymous>: no visible global function definition for
  ‘simulate.formula’
Undefined global functions or variables:
  simulate.formula
'LazyData' is specified without a 'data' directory
simCCCent : <anonymous>: no visible global function definition for
  ‘simulate.formula’
Undefined global functions or variables:
  simulate.formula
'LazyData' is specified without a 'data' directory
simCCCent : <anonymous>: no visible global function definition for
  ‘simulate.formula’
Undefined global functions or variables:
  simulate.formula
'LazyData' is specified without a 'data' directory
simCCCent : <anonymous>: no visible global function definition for
  'simulate.formula'
Undefined global functions or variables:
  simulate.formula
'LazyData' is specified without a 'data' directory
simCCCent : <anonymous>: no visible global function definition for
  'simulate.formula'
Undefined global functions or variables:
  simulate.formula
'LazyData' is specified without a 'data' directory
simCCCent : <anonymous>: no visible global function definition for
  ‘simulate.formula’
Undefined global functions or variables:
  simulate.formula
'LazyData' is specified without a 'data' directory
simCCCent : <anonymous>: no visible global function definition for
  ‘simulate.formula’
Undefined global functions or variables:
  simulate.formula
'LazyData' is specified without a 'data' directory
simCCCent : <anonymous>: no visible global function definition for
  ‘simulate.formula’
Undefined global functions or variables:
  simulate.formula
'LazyData' is specified without a 'data' directory
simCCCent : <anonymous>: no visible global function definition for
  ‘simulate.formula’
Undefined global functions or variables:
  simulate.formula
'LazyData' is specified without a 'data' directory
simCCCent : <anonymous>: no visible global function definition for
  'simulate.formula'
Undefined global functions or variables:
  simulate.formula
'LazyData' is specified without a 'data' directory
simCCCent : <anonymous>: no visible global function definition for
  ‘simulate.formula’
Undefined global functions or variables:
  simulate.formula
simCCCent : <anonymous>: no visible global function definition for
  'simulate.formula'
Undefined global functions or variables:
  simulate.formula