.PcaData: no visible global function definition for ‘var’
.feaSelect: no visible global function definition for ‘pt’
.feaSelect: no visible global function definition for ‘tail’
.feaSelect: no visible global function definition for ‘predict’
.feaSelect: no visible global function definition for ‘cor’
.feaSelect: no visible global function definition for ‘qnorm’
.feaSelectMult: no visible global function definition for ‘pf’
.feaSelectMult: no visible global function definition for ‘tail’
.feaSelectMult: no visible global function definition for ‘predict’
.feaSelectMult: no visible global function definition for ‘cor’
.feaSelectMult: no visible global function definition for ‘qnorm’
.spec.pgram: no visible binding for global variable ‘na.fail’
.spec.pgram: no visible global function definition for ‘as.ts’
.spec.pgram: no visible global function definition for ‘frequency’
.spec.pgram: no visible global function definition for ‘spec.taper’
.spec.pgram: no visible global function definition for ‘nextn’
.spec.pgram: no visible global function definition for ‘mvfft’
.winPrac: no visible global function definition for ‘var’
FeatureEEG: no visible global function definition for ‘rnorm’
classifyEEG: no visible global function definition for ‘var’
classifyEEG: no visible global function definition for ‘predict’
plot.plotwindows: no visible global function definition for ‘lines’
plotEEG: no visible global function definition for ‘lines’
plotEEG: no visible global function definition for ‘colors’
plotEEG: no visible global function definition for ‘spectrum’
plotEEG: no visible global function definition for ‘par’
plotEEG: no visible global function definition for ‘points’
plotEEG: no visible global function definition for ‘tim.colors’
plotEEG: no visible global function definition for ‘tail’
plotwindows: no visible global function definition for ‘var’
plotwindows: no visible global function definition for ‘sd’
plotwindows: no visible global function definition for ‘lines’
randEEG: no visible binding for global variable ‘var’
randEEG: no visible global function definition for ‘tail’
randEEG: no visible global function definition for ‘arima.sim’
svmEEG: no visible binding for global variable ‘na.omit’
Undefined global functions or variables:
  arima.sim as.ts colors cor frequency lines mvfft na.fail na.omit
  nextn par pf points predict pt qnorm rnorm sd spec.taper spectrum
  tail tim.colors var
Consider adding
  importFrom("grDevices", "colors")
  importFrom("graphics", "lines", "par", "points")
  importFrom("stats", "arima.sim", "as.ts", "cor", "frequency", "mvfft",
             "na.fail", "na.omit", "nextn", "pf", "predict", "pt",
             "qnorm", "rnorm", "sd", "spec.taper", "spectrum", "var")
  importFrom("utils", "tail")
to your NAMESPACE file.