Credplot: no visible global function definition for ‘par’
Credplot: no visible global function definition for ‘plot’
Credplot: no visible global function definition for ‘abline’
CrossV: no visible global function definition for ‘optimize’
ICCDIFplot : plotit: no visible global function definition for ‘plot’
ICCDIFplot : plotit: no visible global function definition for ‘lines’
ICCDIFplot : plotit: no visible global function definition for ‘colors’
ICCDIFplot : plotit: no visible global function definition for ‘points’
ICCDIFplot : plotit: no visible global function definition for ‘qnorm’
ICCDIFplot : plotit: no visible global function definition for ‘legend’
ICCDIFplot : plotit: no visible global function definition for ‘abline’
ICCDIFplot : plotit: no visible global function definition for ‘box’
ICCDIFplot: no visible global function definition for ‘par’
ICCplot : plotit: no visible global function definition for ‘plot’
ICCplot : plotit: no visible global function definition for ‘qnorm’
ICCplot : plotit: no visible global function definition for ‘lines’
ICCplot : plotit: no visible global function definition for ‘points’
ICCplot : plotit: no visible global function definition for ‘abline’
ICCplot : plotit: no visible global function definition for ‘box’
ICCplot: no visible global function definition for ‘par’
Inputcheck: no visible binding for global variable ‘sd’
OCCDIFplot : plotit: no visible global function definition for ‘colors’
OCCDIFplot : plotit: no visible global function definition for ‘plot’
OCCDIFplot : plotit: no visible global function definition for ‘lines’
OCCDIFplot : plotit: no visible global function definition for ‘qnorm’
OCCDIFplot : plotit: no visible global function definition for ‘legend’
OCCDIFplot : plotit: no visible global function definition for ‘abline’
OCCDIFplot : plotit: no visible global function definition for ‘box’
OCCDIFplot: no visible global function definition for ‘par’
OCCplot : plotit: no visible global function definition for ‘plot’
OCCplot : plotit: no visible global function definition for ‘lines’
OCCplot : plotit: no visible global function definition for ‘runif’
OCCplot : plotit: no visible global function definition for ‘text’
OCCplot : plotit: no visible global function definition for ‘qnorm’
OCCplot : plotit: no visible global function definition for ‘abline’
OCCplot : plotit: no visible global function definition for ‘box’
OCCplot: no visible global function definition for ‘par’
PCA: no visible global function definition for ‘aggregate’
PCA: no visible global function definition for ‘prcomp’
PCAplot: no visible global function definition for ‘aggregate’
PCAplot: no visible global function definition for ‘prcomp’
PCAplot: no visible global function definition for ‘par’
PCAplot: no visible global function definition for ‘plot’
PCAplot: no visible global function definition for ‘box’
PCAplot: no visible global function definition for ‘text’
PCAplot: no visible global function definition for ‘abline’
Simplexplot: no visible global function definition for ‘par’
Simplexplot : plotit: no visible global function definition for
  ‘legend’
Tetplot : tethraedron: no visible global function definition for
  ‘alarm’
densityDIFplot: no visible global function definition for ‘density’
densityDIFplot: no visible global function definition for ‘plot’
densityDIFplot: no visible global function definition for ‘colors’
densityDIFplot: no visible global function definition for ‘lines’
densityDIFplot: no visible global function definition for ‘legend’
densityDIFplot: no visible global function definition for ‘axis’
densityDIFplot: no visible global function definition for ‘abline’
densityDIFplot: no visible global function definition for ‘box’
densityplot: no visible global function definition for ‘density’
densityplot: no visible global function definition for ‘plot’
densityplot: no visible global function definition for ‘axis’
densityplot: no visible global function definition for ‘abline’
densityplot: no visible global function definition for ‘box’
expectedDIFplot: no visible global function definition for ‘par’
expectedDIFplot: no visible global function definition for ‘plot’
expectedDIFplot: no visible global function definition for ‘abline’
expectedplot: no visible global function definition for ‘plot’
expectedplot: no visible global function definition for ‘abline’
handlemiss: no visible global function definition for ‘rmultinom’
handlemiss: no visible global function definition for ‘na.omit’
ksIRT: no visible global function definition for ‘complete.cases’
ksIRT: no visible global function definition for ‘na.omit’
ksIRT: no visible global function definition for ‘quantile’
ksIRT: no visible global function definition for ‘sd’
ksIRT: no visible global function definition for ‘cor’
plot.ksIRT: no visible global function definition for ‘par’
sdplot: no visible global function definition for ‘plot’
sdplot: no visible global function definition for ‘abline’
subjEIS: no visible global function definition for ‘approx’
subjOCC: no visible global function definition for ‘approx’
Undefined global functions or variables:
  abline aggregate alarm approx axis box colors complete.cases cor
  density legend lines na.omit optimize par plot points prcomp qnorm
  quantile rmultinom runif sd text
Consider adding
  importFrom("grDevices", "colors")
  importFrom("graphics", "abline", "axis", "box", "legend", "lines",
             "par", "plot", "points", "text")
  importFrom("stats", "aggregate", "approx", "complete.cases", "cor",
             "density", "na.omit", "optimize", "prcomp", "qnorm",
             "quantile", "rmultinom", "runif", "sd")
  importFrom("utils", "alarm")
to your NAMESPACE file.