CI.test: no visible global function definition for 'cov'
CI.test: no visible global function definition for 'var'
SubGraph: no visible global function definition for 'new'
chStat: no visible global function definition for 'cov'
chStat: no visible global function definition for 'var'
fit: no visible global function definition for 'var'
fit: no visible global function definition for 'new'
gRapHD.graphNEL: no visible global function definition for 'new'
graphNEL.gRapHD: no visible global function definition for 'new'
jTree: no visible global function definition for 'is'
matrix.gRapHD: no visible global function definition for 'new'
minForest: no visible global function definition for 'new'
normDens: no visible global function definition for 'dnorm'
normDens: no visible global function definition for 'mahalanobis'
plot.gRapHD: no visible global function definition for 'par'
plot.gRapHD: no visible global function definition for 'plot.new'
plot.gRapHD: no visible global function definition for 'plot.window'
plot.gRapHD: no visible global function definition for 'lines'
plot.gRapHD: no visible global function definition for 'polygon'
plot.gRapHD: no visible global function definition for 'symbols'
plot.gRapHD: no visible global function definition for 'text'
plot.gRapHD: no visible global function definition for 'title'
stepb : oneslice.deviance: no visible global function definition for
  'addmargins'
stepb : cen.cov: no visible global function definition for 'var'
stepb : cen.cov: no visible binding for global variable 'var'
stepb : nCI.test: no visible global function definition for 'ftable'
summary.gRapHD: no visible global function definition for 'is'
coerce,gRapHD-graphNEL: no visible global function definition for 'new'
coerce,graphNEL-gRapHD: no visible global function definition for 'new'
coerce,matrix-gRapHD: no visible global function definition for 'new'
plot,gRapHD: no visible global function definition for 'par'
plot,gRapHD: no visible global function definition for 'plot.new'
plot,gRapHD: no visible global function definition for 'plot.window'
plot,gRapHD: no visible global function definition for 'lines'
plot,gRapHD: no visible global function definition for 'polygon'
plot,gRapHD: no visible global function definition for 'symbols'
plot,gRapHD: no visible global function definition for 'text'
plot,gRapHD: no visible global function definition for 'title'
summary,gRapHD: no visible global function definition for 'is'
Undefined global functions or variables:
  addmargins cov dnorm ftable is lines mahalanobis new par plot.new
  plot.window polygon symbols text title var
Consider adding
  importFrom("graphics", "lines", "par", "plot.new", "plot.window",
             "polygon", "symbols", "text", "title")
  importFrom("methods", "is", "new")
  importFrom("stats", "addmargins", "cov", "dnorm", "ftable",
             "mahalanobis", "var")
to your NAMESPACE file (and ensure that your DESCRIPTION Imports field
contains 'methods').