RegLinCirc: no visible global function definition for ‘dnorm’
bw.CV: no visible global function definition for ‘optimize’
bw.boot: no visible global function definition for ‘optimize’
bw.pi: no visible global function definition for ‘optimize’
bw.reg.circ.circ: no visible global function definition for ‘optimize’
bw.reg.circ.lin: no visible global function definition for ‘optimize’
bw.reg.lin.circ: no visible global function definition for ‘optimize’
bw.rt: no visible global function definition for ‘uniroot’
circsizer.density : <anonymous>: no visible global function definition
  for ‘quantile’
circsizer.map: no visible global function definition for ‘text’
circsizer.map: no visible global function definition for ‘par’
circsizer.map: no visible global function definition for
  ‘points.default’
circsizer.map: no visible global function definition for ‘segments’
circsizer.map: no visible global function definition for ‘hist.default’
circsizer.regression : <anonymous>: no visible global function
  definition for ‘quantile’
dwsn: no visible global function definition for ‘dnorm’
dwsn: no visible global function definition for ‘pnorm’
lines.regression.circular: no visible global function definition for
  ‘lines.default’
lines.regression.circular: no visible global function definition for
  ‘points’
plot.regression.circular: no visible global function definition for
  ‘plot.default’
plot.regression.circular: no visible global function definition for
  ‘points’
plot.regression.circular: no visible binding for global variable ‘dist’
rcircmix: no visible global function definition for ‘runif’
rwsn: no visible global function definition for ‘rnorm’
Undefined global functions or variables:
  dist dnorm hist.default lines.default optimize par plot.default pnorm
  points points.default quantile rnorm runif segments text uniroot
Consider adding
  importFrom("graphics", "hist.default", "lines.default", "par",
             "plot.default", "points", "points.default", "segments",
             "text")
  importFrom("stats", "dist", "dnorm", "optimize", "pnorm", "quantile",
             "rnorm", "runif", "uniroot")
to your NAMESPACE file.