Malformed Description field: should contain one or more complete sentences.
map.world: no visible global function definition for 'par'
map.world: no visible global function definition for 'plot.new'
map.world: no visible global function definition for 'plot.window'
map.world: no visible global function definition for 'lines'
map.world: no visible global function definition for 'title'
map.world: no visible global function definition for 'axis'
map.world: no visible global function definition for 'box'
plot.smooth.sspline: no visible global function definition for
  'predict'
plot.smooth.sspline: no visible global function definition for
  'filled.contour'
plot.smooth.sspline: no visible binding for global variable
  'terrain.colors'
plot.smooth.sspline: no visible global function definition for 'title'
plot.smooth.sspline: no visible global function definition for 'axis'
station: no visible binding for global variable 'WTdiff'
station: no visible global function definition for 'points'
Undefined global functions or variables:
  WTdiff axis box filled.contour lines par plot.new plot.window points
  predict terrain.colors title
Consider adding
  importFrom("grDevices", "terrain.colors")
  importFrom("graphics", "axis", "box", "filled.contour", "lines", "par",
             "plot.new", "plot.window", "points", "title")
  importFrom("stats", "predict")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
map.world: no visible global function definition for ‘par’
map.world: no visible global function definition for ‘plot.new’
map.world: no visible global function definition for ‘plot.window’
map.world: no visible global function definition for ‘lines’
map.world: no visible global function definition for ‘title’
map.world: no visible global function definition for ‘axis’
map.world: no visible global function definition for ‘box’
plot.smooth.sspline: no visible global function definition for
  ‘predict’
plot.smooth.sspline: no visible global function definition for
  ‘filled.contour’
plot.smooth.sspline: no visible binding for global variable
  ‘terrain.colors’
plot.smooth.sspline: no visible global function definition for ‘title’
plot.smooth.sspline: no visible global function definition for ‘axis’
station: no visible binding for global variable ‘WTdiff’
station: no visible global function definition for ‘points’
Undefined global functions or variables:
  WTdiff axis box filled.contour lines par plot.new plot.window points
  predict terrain.colors title
Consider adding
  importFrom("grDevices", "terrain.colors")
  importFrom("graphics", "axis", "box", "filled.contour", "lines", "par",
             "plot.new", "plot.window", "points", "title")
  importFrom("stats", "predict")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
map.world: no visible global function definition for ‘par’
map.world: no visible global function definition for ‘plot.new’
map.world: no visible global function definition for ‘plot.window’
map.world: no visible global function definition for ‘lines’
map.world: no visible global function definition for ‘title’
map.world: no visible global function definition for ‘axis’
map.world: no visible global function definition for ‘box’
plot.smooth.sspline: no visible global function definition for
  ‘predict’
plot.smooth.sspline: no visible global function definition for
  ‘filled.contour’
plot.smooth.sspline: no visible binding for global variable
  ‘terrain.colors’
plot.smooth.sspline: no visible global function definition for ‘title’
plot.smooth.sspline: no visible global function definition for ‘axis’
station: no visible binding for global variable ‘WTdiff’
station: no visible global function definition for ‘points’
Undefined global functions or variables:
  WTdiff axis box filled.contour lines par plot.new plot.window points
  predict terrain.colors title
Consider adding
  importFrom("grDevices", "terrain.colors")
  importFrom("graphics", "axis", "box", "filled.contour", "lines", "par",
             "plot.new", "plot.window", "points", "title")
  importFrom("stats", "predict")
to your NAMESPACE file.
File ‘sspline/libs/sspline.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.
Malformed Description field: should contain one or more complete sentences.
map.world: no visible global function definition for ‘par’
map.world: no visible global function definition for ‘plot.new’
map.world: no visible global function definition for ‘plot.window’
map.world: no visible global function definition for ‘lines’
map.world: no visible global function definition for ‘title’
map.world: no visible global function definition for ‘axis’
map.world: no visible global function definition for ‘box’
plot.smooth.sspline: no visible global function definition for
  ‘predict’
plot.smooth.sspline: no visible global function definition for
  ‘filled.contour’
plot.smooth.sspline: no visible binding for global variable
  ‘terrain.colors’
plot.smooth.sspline: no visible global function definition for ‘title’
plot.smooth.sspline: no visible global function definition for ‘axis’
station: no visible binding for global variable ‘WTdiff’
station: no visible global function definition for ‘points’
Undefined global functions or variables:
  WTdiff axis box filled.contour lines par plot.new plot.window points
  predict terrain.colors title
Consider adding
  importFrom("grDevices", "terrain.colors")
  importFrom("graphics", "axis", "box", "filled.contour", "lines", "par",
             "plot.new", "plot.window", "points", "title")
  importFrom("stats", "predict")
to your NAMESPACE file.
File ‘sspline/libs/sspline.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.
Malformed Description field: should contain one or more complete sentences.
map.world: no visible global function definition for 'par'
map.world: no visible global function definition for 'plot.new'
map.world: no visible global function definition for 'plot.window'
map.world: no visible global function definition for 'lines'
map.world: no visible global function definition for 'title'
map.world: no visible global function definition for 'axis'
map.world: no visible global function definition for 'box'
plot.smooth.sspline: no visible global function definition for
  'predict'
plot.smooth.sspline: no visible global function definition for
  'filled.contour'
plot.smooth.sspline: no visible binding for global variable
  'terrain.colors'
plot.smooth.sspline: no visible global function definition for 'title'
plot.smooth.sspline: no visible global function definition for 'axis'
station: no visible binding for global variable 'WTdiff'
station: no visible global function definition for 'points'
Undefined global functions or variables:
  WTdiff axis box filled.contour lines par plot.new plot.window points
  predict terrain.colors title
Consider adding
  importFrom("grDevices", "terrain.colors")
  importFrom("graphics", "axis", "box", "filled.contour", "lines", "par",
             "plot.new", "plot.window", "points", "title")
  importFrom("stats", "predict")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
map.world: no visible global function definition for ‘par’
map.world: no visible global function definition for ‘plot.new’
map.world: no visible global function definition for ‘plot.window’
map.world: no visible global function definition for ‘lines’
map.world: no visible global function definition for ‘title’
map.world: no visible global function definition for ‘axis’
map.world: no visible global function definition for ‘box’
plot.smooth.sspline: no visible global function definition for
  ‘predict’
plot.smooth.sspline: no visible global function definition for
  ‘filled.contour’
plot.smooth.sspline: no visible binding for global variable
  ‘terrain.colors’
plot.smooth.sspline: no visible global function definition for ‘title’
plot.smooth.sspline: no visible global function definition for ‘axis’
station: no visible binding for global variable ‘WTdiff’
station: no visible global function definition for ‘points’
Undefined global functions or variables:
  WTdiff axis box filled.contour lines par plot.new plot.window points
  predict terrain.colors title
Consider adding
  importFrom("grDevices", "terrain.colors")
  importFrom("graphics", "axis", "box", "filled.contour", "lines", "par",
             "plot.new", "plot.window", "points", "title")
  importFrom("stats", "predict")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
map.world: no visible global function definition for ‘par’
map.world: no visible global function definition for ‘plot.new’
map.world: no visible global function definition for ‘plot.window’
map.world: no visible global function definition for ‘lines’
map.world: no visible global function definition for ‘title’
map.world: no visible global function definition for ‘axis’
map.world: no visible global function definition for ‘box’
plot.smooth.sspline: no visible global function definition for
  ‘predict’
plot.smooth.sspline: no visible global function definition for
  ‘filled.contour’
plot.smooth.sspline: no visible binding for global variable
  ‘terrain.colors’
plot.smooth.sspline: no visible global function definition for ‘title’
plot.smooth.sspline: no visible global function definition for ‘axis’
station: no visible binding for global variable ‘WTdiff’
station: no visible global function definition for ‘points’
Undefined global functions or variables:
  WTdiff axis box filled.contour lines par plot.new plot.window points
  predict terrain.colors title
Consider adding
  importFrom("grDevices", "terrain.colors")
  importFrom("graphics", "axis", "box", "filled.contour", "lines", "par",
             "plot.new", "plot.window", "points", "title")
  importFrom("stats", "predict")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
map.world: no visible global function definition for ‘par’
map.world: no visible global function definition for ‘plot.new’
map.world: no visible global function definition for ‘plot.window’
map.world: no visible global function definition for ‘lines’
map.world: no visible global function definition for ‘title’
map.world: no visible global function definition for ‘axis’
map.world: no visible global function definition for ‘box’
plot.smooth.sspline: no visible global function definition for
  ‘predict’
plot.smooth.sspline: no visible global function definition for
  ‘filled.contour’
plot.smooth.sspline: no visible binding for global variable
  ‘terrain.colors’
plot.smooth.sspline: no visible global function definition for ‘title’
plot.smooth.sspline: no visible global function definition for ‘axis’
station: no visible binding for global variable ‘WTdiff’
station: no visible global function definition for ‘points’
Undefined global functions or variables:
  WTdiff axis box filled.contour lines par plot.new plot.window points
  predict terrain.colors title
Consider adding
  importFrom("grDevices", "terrain.colors")
  importFrom("graphics", "axis", "box", "filled.contour", "lines", "par",
             "plot.new", "plot.window", "points", "title")
  importFrom("stats", "predict")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
map.world: no visible global function definition for ‘par’
map.world: no visible global function definition for ‘plot.new’
map.world: no visible global function definition for ‘plot.window’
map.world: no visible global function definition for ‘lines’
map.world: no visible global function definition for ‘title’
map.world: no visible global function definition for ‘axis’
map.world: no visible global function definition for ‘box’
plot.smooth.sspline: no visible global function definition for
  ‘predict’
plot.smooth.sspline: no visible global function definition for
  ‘filled.contour’
plot.smooth.sspline: no visible binding for global variable
  ‘terrain.colors’
plot.smooth.sspline: no visible global function definition for ‘title’
plot.smooth.sspline: no visible global function definition for ‘axis’
station: no visible binding for global variable ‘WTdiff’
station: no visible global function definition for ‘points’
Undefined global functions or variables:
  WTdiff axis box filled.contour lines par plot.new plot.window points
  predict terrain.colors title
Consider adding
  importFrom("grDevices", "terrain.colors")
  importFrom("graphics", "axis", "box", "filled.contour", "lines", "par",
             "plot.new", "plot.window", "points", "title")
  importFrom("stats", "predict")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
map.world: no visible global function definition for 'par'
map.world: no visible global function definition for 'plot.new'
map.world: no visible global function definition for 'plot.window'
map.world: no visible global function definition for 'lines'
map.world: no visible global function definition for 'title'
map.world: no visible global function definition for 'axis'
map.world: no visible global function definition for 'box'
plot.smooth.sspline: no visible global function definition for
  'predict'
plot.smooth.sspline: no visible global function definition for
  'filled.contour'
plot.smooth.sspline: no visible binding for global variable
  'terrain.colors'
plot.smooth.sspline: no visible global function definition for 'title'
plot.smooth.sspline: no visible global function definition for 'axis'
station: no visible binding for global variable 'WTdiff'
station: no visible global function definition for 'points'
Undefined global functions or variables:
  WTdiff axis box filled.contour lines par plot.new plot.window points
  predict terrain.colors title
Consider adding
  importFrom("grDevices", "terrain.colors")
  importFrom("graphics", "axis", "box", "filled.contour", "lines", "par",
             "plot.new", "plot.window", "points", "title")
  importFrom("stats", "predict")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
map.world: no visible global function definition for ‘par’
map.world: no visible global function definition for ‘plot.new’
map.world: no visible global function definition for ‘plot.window’
map.world: no visible global function definition for ‘lines’
map.world: no visible global function definition for ‘title’
map.world: no visible global function definition for ‘axis’
map.world: no visible global function definition for ‘box’
plot.smooth.sspline: no visible global function definition for
  ‘predict’
plot.smooth.sspline: no visible global function definition for
  ‘filled.contour’
plot.smooth.sspline: no visible binding for global variable
  ‘terrain.colors’
plot.smooth.sspline: no visible global function definition for ‘title’
plot.smooth.sspline: no visible global function definition for ‘axis’
station: no visible binding for global variable ‘WTdiff’
station: no visible global function definition for ‘points’
Undefined global functions or variables:
  WTdiff axis box filled.contour lines par plot.new plot.window points
  predict terrain.colors title
Consider adding
  importFrom("grDevices", "terrain.colors")
  importFrom("graphics", "axis", "box", "filled.contour", "lines", "par",
             "plot.new", "plot.window", "points", "title")
  importFrom("stats", "predict")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
map.world: no visible global function definition for ‘par’
map.world: no visible global function definition for ‘plot.new’
map.world: no visible global function definition for ‘plot.window’
map.world: no visible global function definition for ‘lines’
map.world: no visible global function definition for ‘title’
map.world: no visible global function definition for ‘axis’
map.world: no visible global function definition for ‘box’
plot.smooth.sspline: no visible global function definition for
  ‘predict’
plot.smooth.sspline: no visible global function definition for
  ‘filled.contour’
plot.smooth.sspline: no visible binding for global variable
  ‘terrain.colors’
plot.smooth.sspline: no visible global function definition for ‘title’
plot.smooth.sspline: no visible global function definition for ‘axis’
station: no visible binding for global variable ‘WTdiff’
station: no visible global function definition for ‘points’
Undefined global functions or variables:
  WTdiff axis box filled.contour lines par plot.new plot.window points
  predict terrain.colors title
Consider adding
  importFrom("grDevices", "terrain.colors")
  importFrom("graphics", "axis", "box", "filled.contour", "lines", "par",
             "plot.new", "plot.window", "points", "title")
  importFrom("stats", "predict")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
map.world: no visible global function definition for 'par'
map.world: no visible global function definition for 'plot.new'
map.world: no visible global function definition for 'plot.window'
map.world: no visible global function definition for 'lines'
map.world: no visible global function definition for 'title'
map.world: no visible global function definition for 'axis'
map.world: no visible global function definition for 'box'
plot.smooth.sspline: no visible global function definition for
  'predict'
plot.smooth.sspline: no visible global function definition for
  'filled.contour'
plot.smooth.sspline: no visible binding for global variable
  'terrain.colors'
plot.smooth.sspline: no visible global function definition for 'title'
plot.smooth.sspline: no visible global function definition for 'axis'
station: no visible binding for global variable 'WTdiff'
station: no visible global function definition for 'points'
Undefined global functions or variables:
  WTdiff axis box filled.contour lines par plot.new plot.window points
  predict terrain.colors title
Consider adding
  importFrom("grDevices", "terrain.colors")
  importFrom("graphics", "axis", "box", "filled.contour", "lines", "par",
             "plot.new", "plot.window", "points", "title")
  importFrom("stats", "predict")
to your NAMESPACE file.