plot.sensitivity.2.0d: no visible global function definition for 'gray'
sensitivitySGD: no visible global function definition for 'tail'
sensitivitySGL: no visible global function definition for 'tail'
Undefined global functions or variables:
  gray tail
Consider adding
  importFrom("grDevices", "gray")
  importFrom("utils", "tail")
to your NAMESPACE file.
plot.sensitivity.2.0d: no visible global function definition for ‘gray’
sensitivitySGD: no visible global function definition for ‘tail’
sensitivitySGL: no visible global function definition for ‘tail’
Undefined global functions or variables:
  gray tail
Consider adding
  importFrom("grDevices", "gray")
  importFrom("utils", "tail")
to your NAMESPACE file.
plot.sensitivity.2.0d: no visible global function definition for ‘gray’
sensitivitySGD: no visible global function definition for ‘tail’
sensitivitySGL: no visible global function definition for ‘tail’
Undefined global functions or variables:
  gray tail
Consider adding
  importFrom("grDevices", "gray")
  importFrom("utils", "tail")
to your NAMESPACE file.
File ‘sensitivityPStrat/libs/sensitivityPStrat.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.sensitivity.2.0d: no visible global function definition for ‘gray’
sensitivitySGD: no visible global function definition for ‘tail’
sensitivitySGL: no visible global function definition for ‘tail’
Undefined global functions or variables:
  gray tail
Consider adding
  importFrom("grDevices", "gray")
  importFrom("utils", "tail")
to your NAMESPACE file.
File ‘sensitivityPStrat/libs/sensitivityPStrat.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.sensitivity.2.0d: no visible global function definition for 'gray'
sensitivitySGD: no visible global function definition for 'tail'
sensitivitySGL: no visible global function definition for 'tail'
Undefined global functions or variables:
  gray tail
Consider adding
  importFrom("grDevices", "gray")
  importFrom("utils", "tail")
to your NAMESPACE file.
plot.sensitivity.2.0d: no visible global function definition for ‘gray’
sensitivitySGD: no visible global function definition for ‘tail’
sensitivitySGL: no visible global function definition for ‘tail’
Undefined global functions or variables:
  gray tail
Consider adding
  importFrom("grDevices", "gray")
  importFrom("utils", "tail")
to your NAMESPACE file.
plot.sensitivity.2.0d: no visible global function definition for ‘gray’
sensitivitySGD: no visible global function definition for ‘tail’
sensitivitySGL: no visible global function definition for ‘tail’
Undefined global functions or variables:
  gray tail
Consider adding
  importFrom("grDevices", "gray")
  importFrom("utils", "tail")
to your NAMESPACE file.
plot.sensitivity.2.0d: no visible global function definition for ‘gray’
sensitivitySGD: no visible global function definition for ‘tail’
sensitivitySGL: no visible global function definition for ‘tail’
Undefined global functions or variables:
  gray tail
Consider adding
  importFrom("grDevices", "gray")
  importFrom("utils", "tail")
to your NAMESPACE file.
plot.sensitivity.2.0d: no visible global function definition for ‘gray’
sensitivitySGD: no visible global function definition for ‘tail’
sensitivitySGL: no visible global function definition for ‘tail’
Undefined global functions or variables:
  gray tail
Consider adding
  importFrom("grDevices", "gray")
  importFrom("utils", "tail")
to your NAMESPACE file.
plot.sensitivity.2.0d: no visible global function definition for 'gray'
sensitivitySGD: no visible global function definition for 'tail'
sensitivitySGL: no visible global function definition for 'tail'
Undefined global functions or variables:
  gray tail
Consider adding
  importFrom("grDevices", "gray")
  importFrom("utils", "tail")
to your NAMESPACE file.
plot.sensitivity.2.0d: no visible global function definition for ‘gray’
sensitivitySGD: no visible global function definition for ‘tail’
sensitivitySGL: no visible global function definition for ‘tail’
Undefined global functions or variables:
  gray tail
Consider adding
  importFrom("grDevices", "gray")
  importFrom("utils", "tail")
to your NAMESPACE file.
plot.sensitivity.2.0d: no visible global function definition for ‘gray’
sensitivitySGD: no visible global function definition for ‘tail’
sensitivitySGL: no visible global function definition for ‘tail’
Undefined global functions or variables:
  gray tail
Consider adding
  importFrom("grDevices", "gray")
  importFrom("utils", "tail")
to your NAMESPACE file.
plot.sensitivity.2.0d: no visible global function definition for 'gray'
sensitivitySGD: no visible global function definition for 'tail'
sensitivitySGL: no visible global function definition for 'tail'
Undefined global functions or variables:
  gray tail
Consider adding
  importFrom("grDevices", "gray")
  importFrom("utils", "tail")
to your NAMESPACE file.