nlmeODE: no visible global function definition for 'deriv'
Undefined global functions or variables:
  deriv
Consider adding
  importFrom("stats", "deriv")
to your NAMESPACE file.
nlmeODE: no visible global function definition for ‘deriv’
Undefined global functions or variables:
  deriv
Consider adding
  importFrom("stats", "deriv")
to your NAMESPACE file.
nlmeODE: no visible global function definition for ‘deriv’
Undefined global functions or variables:
  deriv
Consider adding
  importFrom("stats", "deriv")
to your NAMESPACE file.
nlmeODE: no visible global function definition for ‘deriv’
Undefined global functions or variables:
  deriv
Consider adding
  importFrom("stats", "deriv")
to your NAMESPACE file.
nlmeODE: no visible global function definition for 'deriv'
Undefined global functions or variables:
  deriv
Consider adding
  importFrom("stats", "deriv")
to your NAMESPACE file.
nlmeODE: no visible global function definition for ‘deriv’
Undefined global functions or variables:
  deriv
Consider adding
  importFrom("stats", "deriv")
to your NAMESPACE file.
nlmeODE: no visible global function definition for ‘deriv’
Undefined global functions or variables:
  deriv
Consider adding
  importFrom("stats", "deriv")
to your NAMESPACE file.
nlmeODE: no visible global function definition for ‘deriv’
Undefined global functions or variables:
  deriv
Consider adding
  importFrom("stats", "deriv")
to your NAMESPACE file.
nlmeODE: no visible global function definition for ‘deriv’
Undefined global functions or variables:
  deriv
Consider adding
  importFrom("stats", "deriv")
to your NAMESPACE file.
nlmeODE: no visible global function definition for 'deriv'
Undefined global functions or variables:
  deriv
Consider adding
  importFrom("stats", "deriv")
to your NAMESPACE file.
nlmeODE: no visible global function definition for ‘deriv’
Undefined global functions or variables:
  deriv
Consider adding
  importFrom("stats", "deriv")
to your NAMESPACE file.
nlmeODE: no visible global function definition for ‘deriv’
Undefined global functions or variables:
  deriv
Consider adding
  importFrom("stats", "deriv")
to your NAMESPACE file.
nlmeODE: no visible global function definition for 'deriv'
Undefined global functions or variables:
  deriv
Consider adding
  importFrom("stats", "deriv")
to your NAMESPACE file.