blend.col: no visible global function definition for ‘col2rgb’
blend.col: no visible global function definition for ‘rgb’
default.bdry: no visible global function definition for ‘par’
default.bdry: no visible global function definition for ‘plot’
default.bdry: no visible global function definition for ‘locator’
default.bdry: no visible global function definition for ‘polygon’
default.bdry: no visible global function definition for ‘points’
default.bdry: no visible global function definition for ‘lines’
default.knots: no visible global function definition for ‘quantile’
default.knots.2D: no visible global function definition for ‘plot’
default.knots.2D: no visible global function definition for ‘points’
default.knots.2D: no visible global function definition for ‘dev.off’
df.to.spar: no visible global function definition for ‘uniroot’
imageFull: no visible global function definition for ‘par’
imageFull: no visible global function definition for ‘image’
imageLegend: no visible global function definition for ‘image’
imageLegend: no visible global function definition for ‘lines’
imageLegend: no visible global function definition for ‘text’
lines.spm: no visible global function definition for ‘lines’
lines.spm: no visible global function definition for ‘polygon’
lmeFitQr: no visible global function definition for ‘lm.fit’
plot.spm: no visible global function definition for ‘plot’
plot.spm: no visible global function definition for ‘lines’
plot.spm: no visible global function definition for ‘polygon’
plot.spm: no visible global function definition for ‘abline’
plot.spm: no visible global function definition for ‘rug’
ridge.reg: no visible global function definition for ‘lm.fit’
spm: no visible global function definition for ‘as.formula’
spm: no visible global function definition for ‘lm’
spm: no visible global function definition for ‘glm’
spm: no visible global function definition for ‘binomial’
spm: no visible global function definition for ‘poisson’
spmDesign: no visible global function definition for ‘dist’
summary.spm: no visible global function definition for ‘pt’
Undefined global functions or variables:
  abline as.formula binomial col2rgb dev.off dist glm image lines lm
  lm.fit locator par plot points poisson polygon pt quantile rgb rug
  text uniroot
Consider adding
  importFrom("grDevices", "col2rgb", "dev.off", "rgb")
  importFrom("graphics", "abline", "image", "lines", "locator", "par",
             "plot", "points", "polygon", "rug", "text")
  importFrom("stats", "as.formula", "binomial", "dist", "glm", "lm",
             "lm.fit", "poisson", "pt", "quantile", "uniroot")
to your NAMESPACE file.