plot.ETdiagnosis: no visible global function definition for ‘par’
plot.ETdiagnosis: no visible global function definition for ‘plot’
plot.ETdiagnosis: no visible global function definition for ‘lines’
plot.ETdiagnosis: no visible global function definition for ‘legend’
plot.ETmain: no visible global function definition for ‘par’
plot.ETmain: no visible global function definition for ‘plot’
plot.ETmain: no visible global function definition for ‘polygon’
plot.ETmain: no visible global function definition for ‘axis’
plot.ETmain: no visible global function definition for ‘legend’
plot.ETmain: no visible global function definition for ‘lines’
plot.Transpose: no visible global function definition for ‘par’
plot.Transpose: no visible global function definition for ‘plot’
plot.Transpose: no visible global function definition for ‘polygon’
plot.Transpose: no visible global function definition for ‘axis’
plot.Transpose: no visible global function definition for ‘legend’
plot.smooth: no visible global function definition for ‘plot’
plot.smooth: no visible global function definition for ‘lines’
plot_ETdiagnosis_isopleth: no visible global function definition for
  ‘par’
plot_ETdiagnosis_isopleth: no visible global function definition for
  ‘rainbow’
plot_ETdiagnosis_isopleth: no visible global function definition for
  ‘filled.contour’
regPB: no visible global function definition for ‘coef’
regPB: no visible global function definition for ‘lm’
regPB.ac: no visible global function definition for ‘coef’
regPB.ac: no visible global function definition for ‘lm’
regPB.ctsa: no visible global function definition for ‘coef’
regPB.ctsa: no visible global function definition for ‘lm’
Undefined global functions or variables:
  axis coef filled.contour legend lines lm par plot polygon rainbow
Consider adding
  importFrom("grDevices", "rainbow")
  importFrom("graphics", "axis", "filled.contour", "legend", "lines",
             "par", "plot", "polygon")
  importFrom("stats", "coef", "lm")
to your NAMESPACE file.