ppersp: no visible global function definition for 'colorRampPalette'
Undefined global functions or variables:
  colorRampPalette
Consider adding
  importFrom("grDevices", "colorRampPalette")
to your NAMESPACE file.
'LazyData' is specified without a 'data' directory
ppersp: no visible global function definition for ‘colorRampPalette’
Undefined global functions or variables:
  colorRampPalette
Consider adding
  importFrom("grDevices", "colorRampPalette")
to your NAMESPACE file.
'LazyData' is specified without a 'data' directory
ppersp: no visible global function definition for ‘colorRampPalette’
Undefined global functions or variables:
  colorRampPalette
Consider adding
  importFrom("grDevices", "colorRampPalette")
to your NAMESPACE file.
'LazyData' is specified without a 'data' directory
ppersp: no visible global function definition for ‘colorRampPalette’
Undefined global functions or variables:
  colorRampPalette
Consider adding
  importFrom("grDevices", "colorRampPalette")
to your NAMESPACE file.
'LazyData' is specified without a 'data' directory
ppersp: no visible global function definition for 'colorRampPalette'
Undefined global functions or variables:
  colorRampPalette
Consider adding
  importFrom("grDevices", "colorRampPalette")
to your NAMESPACE file.
'LazyData' is specified without a 'data' directory
ppersp: no visible global function definition for ‘colorRampPalette’
Undefined global functions or variables:
  colorRampPalette
Consider adding
  importFrom("grDevices", "colorRampPalette")
to your NAMESPACE file.
'LazyData' is specified without a 'data' directory
ppersp: no visible global function definition for ‘colorRampPalette’
Undefined global functions or variables:
  colorRampPalette
Consider adding
  importFrom("grDevices", "colorRampPalette")
to your NAMESPACE file.
'LazyData' is specified without a 'data' directory
ppersp: no visible global function definition for ‘colorRampPalette’
Undefined global functions or variables:
  colorRampPalette
Consider adding
  importFrom("grDevices", "colorRampPalette")
to your NAMESPACE file.
'LazyData' is specified without a 'data' directory
ppersp: no visible global function definition for ‘colorRampPalette’
Undefined global functions or variables:
  colorRampPalette
Consider adding
  importFrom("grDevices", "colorRampPalette")
to your NAMESPACE file.
'LazyData' is specified without a 'data' directory
ppersp: no visible global function definition for 'colorRampPalette'
Undefined global functions or variables:
  colorRampPalette
Consider adding
  importFrom("grDevices", "colorRampPalette")
to your NAMESPACE file.
'LazyData' is specified without a 'data' directory
ppersp: no visible global function definition for ‘colorRampPalette’
Undefined global functions or variables:
  colorRampPalette
Consider adding
  importFrom("grDevices", "colorRampPalette")
to your NAMESPACE file.
'LazyData' is specified without a 'data' directory
ppersp: no visible global function definition for ‘colorRampPalette’
Undefined global functions or variables:
  colorRampPalette
Consider adding
  importFrom("grDevices", "colorRampPalette")
to your NAMESPACE file.
'LazyData' is specified without a 'data' directory
ppersp: no visible global function definition for 'colorRampPalette'
Undefined global functions or variables:
  colorRampPalette
Consider adding
  importFrom("grDevices", "colorRampPalette")
to your NAMESPACE file.
'LazyData' is specified without a 'data' directory