AutoD2: no visible global function definition for 'lines'
AutoD2: no visible global function definition for 'plot'
CenterD2: no visible global function definition for 'lines'
CenterD2: no visible global function definition for 'plot'
CenterD2: no visible global function definition for 'abline'
CrossD2: no visible global function definition for 'lines'
CrossD2: no visible global function definition for 'plot'
disto: no visible global function definition for 'plot'
escouf: no visible global function definition for 'flush.console'
hist.regul : regul.hist: no visible global function definition for
  'hist'
identify.abund: no visible global function definition for 'identify'
identify.escouf: no visible global function definition for 'identify'
identify.local.trend: no visible global function definition for
  'identify'
identify.regul: no visible global function definition for 'identify'
identify.turnogram: no visible global function definition for
  'identify'
identify.turnogram: no visible global function definition for 'abline'
lines.abund : abund.lines: no visible global function definition for
  'lines'
lines.abund : abund.lines: no visible global function definition for
  'axis'
lines.escouf : escouf.lines: no visible global function definition for
  'lines'
lines.escouf : escouf.lines: no visible global function definition for
  'axis'
lines.regul : regul.lines: no visible global function definition for
  'lines'
lines.regul : regul.lines: no visible global function definition for
  'points'
lines.stat.slide : stat.slide.lines: no visible global function
  definition for 'lines'
lines.turnpoints : turnpoints.lines: no visible global function
  definition for 'lines'
local.trend: no visible global function definition for 'plot'
local.trend: no visible global function definition for 'lines'
plot.abund: no visible global function definition for 'par'
plot.abund : abund.graph: no visible global function definition for
  'plot'
plot.abund : abund.graph: no visible global function definition for
  'axis'
plot.abund : abund.graph: no visible global function definition for
  'lines'
plot.abund : abund.graph: no visible global function definition for
  'legend'
plot.escouf: no visible global function definition for 'par'
plot.escouf : escouf.graph: no visible global function definition for
  'plot'
plot.escouf : escouf.graph: no visible global function definition for
  'axis'
plot.escouf : escouf.graph: no visible global function definition for
  'lines'
plot.escouf : escouf.graph: no visible global function definition for
  'text'
plot.regul: no visible global function definition for 'par'
plot.regul : regul.graph: no visible global function definition for
  'plot'
plot.regul : regul.graph: no visible global function definition for
  'lines'
plot.regul : regul.graph: no visible global function definition for
  'points'
plot.regul : regul.graph: no visible global function definition for
  'legend'
plot.stat.slide: no visible global function definition for 'par'
plot.stat.slide : stat.slide.graph: no visible global function
  definition for 'plot'
plot.stat.slide : stat.slide.graph: no visible global function
  definition for 'lines'
plot.stat.slide : stat.slide.graph: no visible global function
  definition for 'legend'
plot.tsd: no visible global function definition for 'par'
plot.tsd: no visible global function definition for 'plot'
plot.tsd: no visible global function definition for 'abline'
plot.tsd: no visible global function definition for 'box'
plot.tsd: no visible global function definition for 'axis'
plot.tsd: no visible global function definition for 'mtext'
plot.tsd: no visible global function definition for 'legend'
plot.turnogram : turnogram.graph: no visible global function definition
  for 'plot'
plot.turnogram : turnogram.graph: no visible global function definition
  for 'lines'
plot.turnogram : turnogram.graph: no visible global function definition
  for 'abline'
plot.turnpoints : turnpoints.graph: no visible global function
  definition for 'plot'
plot.turnpoints : turnpoints.graph: no visible global function
  definition for 'abline'
regarea: no visible global function definition for 'xy.coords'
regul.adj: no visible global function definition for 'hist'
stat.slide: no visible global function definition for 'xy.coords'
turnogram: no visible global function definition for 'plot'
turnogram: no visible global function definition for 'lines'
turnogram: no visible global function definition for 'abline'
vario: no visible global function definition for 'plot'
Undefined global functions or variables:
  abline axis box flush.console hist identify legend lines mtext par
  plot points text xy.coords
Consider adding
  importFrom("grDevices", "xy.coords")
  importFrom("graphics", "abline", "axis", "box", "hist", "identify",
             "legend", "lines", "mtext", "par", "plot", "points", "text")
  importFrom("utils", "flush.console")
to your NAMESPACE file.