convert.infusion: no visible global function definition for 'size'
create.intervals: no visible global function definition for 'size'
create.intervals: no visible global function definition for 'transpose'
dde.model: no visible global function definition for 'size'
dde.model: no visible global function definition for 'transpose'
dde.syst: no visible global function definition for 'approx'
de.output: no visible global function definition for 'size'
estimation.plot: no visible global function definition for 'reshape'
estimation.plot: no visible global function definition for 'pdf'
estimation.plot: no visible global function definition for 'dev.off'
explicit.model: no visible global function definition for 'size'
finalize.report: no visible global function definition for 'transpose'
finalize.report: no visible global function definition for 'size'
fitmle : obj.fun: no visible global function definition for 'size'
fitmle.cov: no visible global function definition for 'transpose'
fitmle.cov: no visible global function definition for 'qt'
get.cov.matrix: no visible global function definition for 'size'
get.parms.data: no visible global function definition for 'size'
get.secondary: no visible global function definition for 'transpose'
init.cond: no visible global function definition for 'size'
init.update: no visible global function definition for 'size'
input.scaling: no visible global function definition for 'size'
make.dosing: no visible global function definition for 'size'
make.dosing: no visible global function definition for 'approx'
ode.model: no visible global function definition for 'size'
ode.model: no visible global function definition for 'transpose'
ode.syst: no visible global function definition for 'approx'
problem.eval: no visible global function definition for 'size'
residual.report: no visible global function definition for 'size'
scarabee.check.model: no visible global function definition for 'size'
scarabee.gridsearch : grid.obj.fun: no visible global function
  definition for 'size'
scarabee.read.data: no visible global function definition for 'size'
scarabee.read.parms: no visible global function definition for 'size'
simulation.plot: no visible global function definition for 'pdf'
simulation.plot: no visible global function definition for 'dev.off'
simulation.plot: no visible global function definition for 'dev.new'
simulation.plot: no visible global function definition for 'par'
simulation.report: no visible global function definition for 'size'
weighting: no visible global function definition for 'size'
Undefined global functions or variables:
  approx dev.new dev.off par pdf qt reshape size transpose
Consider adding
  importFrom("grDevices", "dev.new", "dev.off", "pdf")
  importFrom("graphics", "par")
  importFrom("stats", "approx", "qt", "reshape")
to your NAMESPACE file.