boxplot.fso: no visible global function definition for 'boxplot'
boxplot.mfso: no visible global function definition for 'boxplot'
chullord.fso: no visible global function definition for 'chull'
chullord.fso: no visible global function definition for 'polygon'
chullord.mfso: no visible global function definition for 'plot'
chullord.mfso: no visible global function definition for 'chull'
chullord.mfso: no visible global function definition for 'polygon'
chullord.mfso: no visible global function definition for 'points'
core.fso: no visible global function definition for 'cor'
fso.default: no visible global function definition for 'cor.test'
fso.default: no visible global function definition for 'cor'
fso.default: no visible global function definition for 'dist'
fso.formula: no visible global function definition for 'model.matrix'
fso.formula: no visible global function definition for 'terms'
fso.formula: no visible global function definition for 'as.dist'
hilight.fso: no visible global function definition for 'plot'
hilight.fso: no visible binding for global variable 'var'
hilight.fso: no visible global function definition for 'points'
hilight.mfso: no visible global function definition for 'plot'
hilight.mfso: no visible global function definition for 'points'
mfso.default : perm.fso: no visible global function definition for
  'as.dist'
mfso.default : perm.fso: no visible global function definition for
  'dist'
mfso.default : perm.fso: no visible global function definition for
  'cor'
mfso.default: no visible global function definition for 'as.dist'
mfso.default: no visible global function definition for 'cor'
mfso.default: no visible global function definition for 'dist'
mfso.default: no visible global function definition for 'cor.test'
mfso.formula: no visible global function definition for 'model.matrix'
mfso.formula: no visible global function definition for 'as.dist'
plot.fso: no visible global function definition for 'plot'
plot.fso: no visible global function definition for 'text'
plot.mfso: no visible global function definition for 'plot'
plot.mfso: no visible global function definition for 'dist'
plot.mfso: no visible global function definition for 'as.dist'
plot.mfso: no visible global function definition for 'text'
plot.mfso: no visible global function definition for 'cor'
plotid.fso: no visible global function definition for 'plot'
plotid.fso: no visible global function definition for 'text'
plotid.fso: no visible global function definition for 'identify'
plotid.mfso: no visible global function definition for 'plot'
plotid.mfso: no visible global function definition for 'identify'
plotid.mfso: no visible global function definition for 'dist'
plotid.mfso: no visible global function definition for 'as.dist'
plotid.mfso: no visible global function definition for 'text'
plotid.mfso: no visible global function definition for 'cor'
points.fso: no visible global function definition for 'plot'
points.fso: no visible global function definition for 'points'
points.mfso: no visible global function definition for 'plot'
points.mfso: no visible global function definition for 'points'
step.mfso : perm.fso: no visible global function definition for 'dist'
step.mfso : perm.fso: no visible global function definition for
  'as.dist'
step.mfso : perm.fso: no visible global function definition for 'cor'
step.mfso: no visible global function definition for 'as.dist'
step.mfso: no visible global function definition for 'dist'
step.mfso: no visible global function definition for 'cor'
summary.fso: no visible global function definition for 'cor'
thull.mfso: no visible global function definition for 'contour'
Undefined global functions or variables:
  as.dist boxplot chull contour cor cor.test dist identify model.matrix
  plot points polygon terms text var
Consider adding
  importFrom("grDevices", "chull")
  importFrom("graphics", "boxplot", "contour", "identify", "plot",
             "points", "polygon", "text")
  importFrom("stats", "as.dist", "cor", "cor.test", "dist",
             "model.matrix", "terms", "var")
to your NAMESPACE file.