NB.estimator: no visible global function definition for 'optimize'
NB.estimator: no visible global function definition for 'uniroot'
NB.example.dataset: no visible global function definition for
  'write.table'
Undefined global functions or variables:
  optimize uniroot write.table
Consider adding
  importFrom("stats", "optimize", "uniroot")
  importFrom("utils", "write.table")
to your NAMESPACE file.
Found the following files/directories:
  'sample_data.txt'
NB.estimator: no visible global function definition for ‘optimize’
NB.estimator: no visible global function definition for ‘uniroot’
NB.example.dataset: no visible global function definition for
  ‘write.table’
Undefined global functions or variables:
  optimize uniroot write.table
Consider adding
  importFrom("stats", "optimize", "uniroot")
  importFrom("utils", "write.table")
to your NAMESPACE file.
Found the following files/directories:
  ‘sample_data.txt’
NB.estimator: no visible global function definition for ‘optimize’
NB.estimator: no visible global function definition for ‘uniroot’
NB.example.dataset: no visible global function definition for
  ‘write.table’
Undefined global functions or variables:
  optimize uniroot write.table
Consider adding
  importFrom("stats", "optimize", "uniroot")
  importFrom("utils", "write.table")
to your NAMESPACE file.
Found the following files/directories:
  ‘sample_data.txt’
NB.estimator: no visible global function definition for ‘optimize’
NB.estimator: no visible global function definition for ‘uniroot’
NB.example.dataset: no visible global function definition for
  ‘write.table’
Undefined global functions or variables:
  optimize uniroot write.table
Consider adding
  importFrom("stats", "optimize", "uniroot")
  importFrom("utils", "write.table")
to your NAMESPACE file.
Found the following files/directories:
  ‘sample_data.txt’
NB.estimator: no visible global function definition for 'optimize'
NB.estimator: no visible global function definition for 'uniroot'
NB.example.dataset: no visible global function definition for
  'write.table'
Undefined global functions or variables:
  optimize uniroot write.table
Consider adding
  importFrom("stats", "optimize", "uniroot")
  importFrom("utils", "write.table")
to your NAMESPACE file.
NB.estimator: no visible global function definition for ‘optimize’
NB.estimator: no visible global function definition for ‘uniroot’
NB.example.dataset: no visible global function definition for
  ‘write.table’
Undefined global functions or variables:
  optimize uniroot write.table
Consider adding
  importFrom("stats", "optimize", "uniroot")
  importFrom("utils", "write.table")
to your NAMESPACE file.
Found the following files/directories:
  ‘sample_data.txt’
NB.estimator: no visible global function definition for ‘optimize’
NB.estimator: no visible global function definition for ‘uniroot’
NB.example.dataset: no visible global function definition for
  ‘write.table’
Undefined global functions or variables:
  optimize uniroot write.table
Consider adding
  importFrom("stats", "optimize", "uniroot")
  importFrom("utils", "write.table")
to your NAMESPACE file.
Found the following files/directories:
  ‘sample_data.txt’
NB.estimator: no visible global function definition for ‘optimize’
NB.estimator: no visible global function definition for ‘uniroot’
NB.example.dataset: no visible global function definition for
  ‘write.table’
Undefined global functions or variables:
  optimize uniroot write.table
Consider adding
  importFrom("stats", "optimize", "uniroot")
  importFrom("utils", "write.table")
to your NAMESPACE file.
NB.estimator: no visible global function definition for ‘optimize’
NB.estimator: no visible global function definition for ‘uniroot’
NB.example.dataset: no visible global function definition for
  ‘write.table’
Undefined global functions or variables:
  optimize uniroot write.table
Consider adding
  importFrom("stats", "optimize", "uniroot")
  importFrom("utils", "write.table")
to your NAMESPACE file.
NB.estimator: no visible global function definition for 'optimize'
NB.estimator: no visible global function definition for 'uniroot'
NB.example.dataset: no visible global function definition for
  'write.table'
Undefined global functions or variables:
  optimize uniroot write.table
Consider adding
  importFrom("stats", "optimize", "uniroot")
  importFrom("utils", "write.table")
to your NAMESPACE file.
NB.estimator: no visible global function definition for ‘optimize’
NB.estimator: no visible global function definition for ‘uniroot’
NB.example.dataset: no visible global function definition for
  ‘write.table’
Undefined global functions or variables:
  optimize uniroot write.table
Consider adding
  importFrom("stats", "optimize", "uniroot")
  importFrom("utils", "write.table")
to your NAMESPACE file.
NB.estimator: no visible global function definition for ‘optimize’
NB.estimator: no visible global function definition for ‘uniroot’
NB.example.dataset: no visible global function definition for
  ‘write.table’
Undefined global functions or variables:
  optimize uniroot write.table
Consider adding
  importFrom("stats", "optimize", "uniroot")
  importFrom("utils", "write.table")
to your NAMESPACE file.
NB.estimator: no visible global function definition for 'optimize'
NB.estimator: no visible global function definition for 'uniroot'
NB.example.dataset: no visible global function definition for
  'write.table'
Undefined global functions or variables:
  optimize uniroot write.table
Consider adding
  importFrom("stats", "optimize", "uniroot")
  importFrom("utils", "write.table")
to your NAMESPACE file.