calcStats: no visible global function definition for 'as.formula'
calcStats: no visible global function definition for 'na.omit'
Undefined global functions or variables:
  as.formula na.omit
Consider adding
  importFrom("stats", "as.formula", "na.omit")
to your NAMESPACE file.
calcStats: no visible global function definition for ‘as.formula’
calcStats: no visible global function definition for ‘na.omit’
Undefined global functions or variables:
  as.formula na.omit
Consider adding
  importFrom("stats", "as.formula", "na.omit")
to your NAMESPACE file.
calcStats: no visible global function definition for ‘as.formula’
calcStats: no visible global function definition for ‘na.omit’
Undefined global functions or variables:
  as.formula na.omit
Consider adding
  importFrom("stats", "as.formula", "na.omit")
to your NAMESPACE file.
calcStats: no visible global function definition for ‘as.formula’
calcStats: no visible global function definition for ‘na.omit’
Undefined global functions or variables:
  as.formula na.omit
Consider adding
  importFrom("stats", "as.formula", "na.omit")
to your NAMESPACE file.
calcStats: no visible global function definition for 'as.formula'
calcStats: no visible global function definition for 'na.omit'
Undefined global functions or variables:
  as.formula na.omit
Consider adding
  importFrom("stats", "as.formula", "na.omit")
to your NAMESPACE file.
calcStats: no visible global function definition for ‘as.formula’
calcStats: no visible global function definition for ‘na.omit’
Undefined global functions or variables:
  as.formula na.omit
Consider adding
  importFrom("stats", "as.formula", "na.omit")
to your NAMESPACE file.
calcStats: no visible global function definition for ‘as.formula’
calcStats: no visible global function definition for ‘na.omit’
Undefined global functions or variables:
  as.formula na.omit
Consider adding
  importFrom("stats", "as.formula", "na.omit")
to your NAMESPACE file.
calcStats: no visible global function definition for ‘as.formula’
calcStats: no visible global function definition for ‘na.omit’
Undefined global functions or variables:
  as.formula na.omit
Consider adding
  importFrom("stats", "as.formula", "na.omit")
to your NAMESPACE file.
calcStats: no visible global function definition for ‘as.formula’
calcStats: no visible global function definition for ‘na.omit’
Undefined global functions or variables:
  as.formula na.omit
Consider adding
  importFrom("stats", "as.formula", "na.omit")
to your NAMESPACE file.
calcStats: no visible global function definition for 'as.formula'
calcStats: no visible global function definition for 'na.omit'
Undefined global functions or variables:
  as.formula na.omit
Consider adding
  importFrom("stats", "as.formula", "na.omit")
to your NAMESPACE file.
calcStats: no visible global function definition for ‘as.formula’
calcStats: no visible global function definition for ‘na.omit’
Undefined global functions or variables:
  as.formula na.omit
Consider adding
  importFrom("stats", "as.formula", "na.omit")
to your NAMESPACE file.
calcStats: no visible global function definition for ‘as.formula’
calcStats: no visible global function definition for ‘na.omit’
Undefined global functions or variables:
  as.formula na.omit
Consider adding
  importFrom("stats", "as.formula", "na.omit")
to your NAMESPACE file.
calcStats: no visible global function definition for 'as.formula'
calcStats: no visible global function definition for 'na.omit'
Undefined global functions or variables:
  as.formula na.omit
Consider adding
  importFrom("stats", "as.formula", "na.omit")
to your NAMESPACE file.