.TOwen: no visible global function definition for ‘pnorm’
.delliptical2dSlider: no visible global function definition for ‘par’
.delliptical2dSlider : refresh.code: no visible global function
  definition for ‘image’
.delliptical2dSlider : refresh.code: no visible global function
  definition for ‘heat.colors’
.delliptical2dSlider : refresh.code: no visible global function
  definition for ‘contour’
.delliptical2dSlider : refresh.code: no visible global function
  definition for ‘title’
.delliptical2dSlider : refresh.code: no visible global function
  definition for ‘par’
.dnorm2d: no visible global function definition for ‘mahalanobis’
.mnFit: no visible global function definition for ‘cov’
.mnFit: no visible global function definition for ‘new’
.pnorm2d: no visible global function definition for ‘pnorm’
.rnorm2d: no visible global function definition for ‘rnorm’
contour.gridData: no visible global function definition for ‘image’
contour.gridData: no visible global function definition for ‘contour’
contour.gridData: no visible global function definition for ‘box’
density2d : .bandwidth.nrd: no visible global function definition for
  ‘var’
density2d: no visible global function definition for ‘dnorm’
mscFit: no visible global function definition for ‘new’
msnFit: no visible global function definition for ‘new’
mstFit: no visible global function definition for ‘new’
persp.gridData: no visible global function definition for ‘persp’
plot.hexBinning: no visible global function definition for
  ‘heat.colors’
plot.hexBinning: no visible global function definition for ‘polygon’
plot.hexBinning: no visible global function definition for ‘rug’
plot.squareBinning: no visible global function definition for
  ‘heat.colors’
plot.squareBinning: no visible global function definition for ‘polygon’
plot.squareBinning: no visible global function definition for ‘rug’
rnorm2d: no visible global function definition for ‘rnorm’
rt2d: no visible global function definition for ‘rchisq’
Undefined global functions or variables:
  box contour cov dnorm heat.colors image mahalanobis new par persp
  pnorm polygon rchisq rnorm rug title var
Consider adding
  importFrom("grDevices", "heat.colors")
  importFrom("graphics", "box", "contour", "image", "par", "persp",
             "polygon", "rug", "title")
  importFrom("methods", "new")
  importFrom("stats", "cov", "dnorm", "mahalanobis", "pnorm", "rchisq",
             "rnorm", "var")
to your NAMESPACE file (and ensure that your DESCRIPTION Imports field
contains 'methods').