cpv: no visible global function definition for 'model.matrix'
cpv: no visible global function definition for 'rnorm'
cpv: no visible global function definition for 'par'
cpv: no visible global function definition for 'grid'
cpv: no visible global function definition for 'lines'
cpv: no visible global function definition for 'legend'
cpv: no visible global function definition for 'abline'
cpv: no visible global function definition for 'text'
cpv: no visible global function definition for 'runif'
cpv: no visible global function definition for 'points'
cpv: no visible global function definition for 'boxplot'
fds.cube: no visible global function definition for 'model.matrix'
fds.cube: no visible global function definition for 'runif'
fds.cube: no visible global function definition for 'par'
fds.cube: no visible global function definition for 'quantile'
fds.cube: no visible global function definition for 'grid'
fds.cube: no visible global function definition for 'lines'
fds.cube: no visible global function definition for 'legend'
fds.cube: no visible global function definition for 'abline'
fds.cube: no visible global function definition for 'text'
fds.sphere: no visible global function definition for 'model.matrix'
fds.sphere: no visible global function definition for 'rnorm'
fds.sphere: no visible global function definition for 'runif'
fds.sphere: no visible global function definition for 'par'
fds.sphere: no visible global function definition for 'quantile'
fds.sphere: no visible global function definition for 'grid'
fds.sphere: no visible global function definition for 'lines'
fds.sphere: no visible global function definition for 'legend'
fds.sphere: no visible global function definition for 'abline'
fds.sphere: no visible global function definition for 'text'
hyperarcs.vdg: no visible global function definition for 'model.matrix'
hyperarcs.vdg: no visible global function definition for 'runif'
hyperarcs.vdg: no visible global function definition for 'par'
hyperarcs.vdg: no visible global function definition for 'grid'
hyperarcs.vdg: no visible global function definition for 'lines'
hyperarcs.vdg: no visible global function definition for 'legend'
spv: no visible global function definition for 'model.matrix'
spv: no visible global function definition for 'rnorm'
spv: no visible global function definition for 'par'
spv: no visible global function definition for 'grid'
spv: no visible global function definition for 'lines'
spv: no visible global function definition for 'legend'
spv: no visible global function definition for 'abline'
spv: no visible global function definition for 'text'
spv: no visible global function definition for 'runif'
spv: no visible global function definition for 'points'
spvcontour: no visible global function definition for 'model.matrix'
spvcontour: no visible global function definition for 'runif'
spvcontour: no visible global function definition for 'par'
spvcontour: no visible global function definition for 'contour'
spvcontour: no visible global function definition for 'lines'
spvcontour: no visible global function definition for 'points'
spvcontour: no visible global function definition for 'segments'
Undefined global functions or variables:
  abline boxplot contour grid legend lines model.matrix par points
  quantile rnorm runif segments text
Consider adding
  importFrom("graphics", "abline", "boxplot", "contour", "grid",
             "legend", "lines", "par", "points", "segments", "text")
  importFrom("stats", "model.matrix", "quantile", "rnorm", "runif")
to your NAMESPACE file.