Invalid MIT-MAGIC-COOKIE-1 keyInvalid MIT-MAGIC-COOKIE-1 keycheck.convergence: no visible binding for global variable ‘dnorm’
check.convergence: no visible binding for global variable ‘pnorm’
check.convergence: no visible binding for global variable ‘plot’
check.convergence: no visible global function definition for ‘mtext’
investigate: no visible global function definition for ‘graphics.off’
investigate : plotright: no visible global function definition for
  ‘plot.new’
investigate : plotright: no visible global function definition for
  ‘plot.window’
investigate : plotright: no visible global function definition for
  ‘box’
investigate : plotright: no visible global function definition for
  ‘text’
investigate : OnOK: no visible global function definition for
  ‘graphics.off’
investigate : OnOK : pnotasgen: no visible global function definition
  for ‘runif’
investigate : OnOK : lnotpgen: no visible global function definition
  for ‘rnorm’
investigate : OnOK : pnotrgen: no visible global function definition
  for ‘rbinom’
investigate : OnOK: no visible global function definition for ‘dev.new’
investigate : OnOK: no visible global function definition for ‘legend’
investigate : OnOK : asnotrgen: no visible global function definition
  for ‘runif’
investigate : OnOK : rnotasgen: no visible global function definition
  for ‘rnorm’
investigate : OnOK: no visible global function definition for ‘points’
investigate : OnOK : gen6.1: no visible global function definition for
  ‘runif’
investigate : OnOK : gen6.2: no visible global function definition for
  ‘runif’
investigate : OnOK: no visible binding for global variable ‘dunif’
investigate : OnOK: no visible binding for global variable ‘punif’
investigate : OnOK : moyrand: no visible global function definition for
  ‘rnorm’
investigate : OnOK : myrbinom: no visible global function definition
  for ‘rbinom’
investigate : OnOK: no visible binding for global variable ‘plot’
investigate : OnOK: no visible binding for global variable ‘points’
investigate : OnOK: no visible global function definition for ‘text’
investigate : OnOK: no visible global function definition for
  ‘plot.new’
investigate : OnOK: no visible global function definition for ‘title’
investigate : OnOK: no visible global function definition for
  ‘dev.prev’
investigate : OnOK : rand1: no visible global function definition for
  ‘rchisq’
investigate : OnOK: no visible binding for global variable ‘dnorm’
investigate : OnOK: no visible binding for global variable ‘pnorm’
investigate : OnOK: no visible global function definition for ‘dev.off’
law.plot2d: no visible binding for global variable ‘dnorm’
law.plot2d: no visible binding for global variable ‘pnorm’
law.plot2d : <anonymous>: no visible global function definition for
  ‘curve’
law.plot2d : <anonymous>: no visible global function definition for
  ‘par’
law.plot2d : <anonymous>: no visible global function definition for
  ‘hist’
law.plot2d : <anonymous>: no visible global function definition for
  ‘plot.ecdf’
law.plot2d : <anonymous>: no visible global function definition for
  ‘ecdf’
law.plot3d : Fhat: no visible global function definition for ‘ecdf’
p.as.plot : plotleft: no visible global function definition for
  ‘plot.new’
p.as.plot : plotleft: no visible global function definition for
  ‘plot.window’
p.as.plot : plotleft: no visible global function definition for ‘axis’
p.as.plot : plotleft: no visible global function definition for ‘box’
p.as.plot : plotleft: no visible global function definition for ‘rect’
p.as.plot : plotleft: no visible binding for global variable ‘points’
p.as.plot : plotleft: no visible global function definition for
  ‘points’
p.as.plot : plotleft: no visible global function definition for ‘title’
p.as.plot : plotleft: no visible global function definition for
  ‘abline’
p.as.plot : plotleft: no visible global function definition for ‘mtext’
p.as.plot : plotright: no visible global function definition for
  ‘plot.new’
p.as.plot : plotright: no visible global function definition for
  ‘plot.window’
p.as.plot : plotright: no visible global function definition for ‘axis’
p.as.plot : plotright: no visible global function definition for ‘box’
p.as.plot : plotright: no visible binding for global variable ‘points’
p.as.plot : plotright: no visible global function definition for ‘text’
p.as.plot : plotright: no visible global function definition for
  ‘title’
p.as.plot : plotright: no visible global function definition for
  ‘mtext’
visualize.crit: no visible binding for global variable ‘plot’
visualize.sp: no visible binding for global variable ‘plot’
visualize.sp: no visible global function definition for ‘mtext’
visualize.sp: no visible binding for global variable ‘points’
visualize.sp: no visible global function definition for ‘abline’
Undefined global functions or variables:
  abline axis box curve dev.new dev.off dev.prev dnorm dunif ecdf
  graphics.off hist legend mtext par plot plot.ecdf plot.new
  plot.window pnorm points punif rbinom rchisq rect rnorm runif text
  title
Consider adding
  importFrom("grDevices", "dev.new", "dev.off", "dev.prev",
             "graphics.off")
  importFrom("graphics", "abline", "axis", "box", "curve", "hist",
             "legend", "mtext", "par", "plot", "plot.new", "plot.window",
             "points", "rect", "text", "title")
  importFrom("stats", "dnorm", "dunif", "ecdf", "plot.ecdf", "pnorm",
             "punif", "rbinom", "rchisq", "rnorm", "runif")
to your NAMESPACE file.