.DIRdivide: no visible global function definition for ‘plot’
.DIRdivide: no visible global function definition for ‘text’
.DIRdivide: no visible global function definition for ‘legend’
.DrHSVM.initial: no visible global function definition for ‘optimize’
.EstNuLong: no visible global function definition for ‘runif’
.erf: no visible global function definition for ‘pnorm’
.plot.EPSGO.parms: no visible global function definition for ‘par’
.plot.EPSGO.parms: no visible global function definition for ‘plot’
.plot.EPSGO.parms: no visible global function definition for ‘abline’
.plot.EPSGO.parms: no visible global function definition for ‘text’
.replaceinf: no visible global function definition for ‘fcn_values<-’
.run.cv: no visible global function definition for ‘predict’
.run.discrete: no visible global function definition for ‘str’
Direct: no visible global function definition for ‘pdf’
Direct: no visible global function definition for ‘par’
Direct: no visible global function definition for ‘dev.off’
EPSGO: no visible global function definition for ‘pdf’
EPSGO: no visible global function definition for ‘par’
EPSGO: no visible global function definition for ‘plot’
EPSGO: no visible global function definition for ‘abline’
EPSGO: no visible global function definition for ‘text’
EPSGO: no visible global function definition for ‘runif’
EPSGO: no visible global function definition for ‘sd’
EPSGO: no visible global function definition for ‘dev.off’
ExpImprovement: no visible global function definition for ‘predict’
ExpImprovement: no visible global function definition for ‘pnorm’
ExpImprovement: no visible global function definition for ‘dnorm’
sim.data: no visible global function definition for ‘runif’
sim.data: no visible global function definition for ‘plogis’
Undefined global functions or variables:
  abline dev.off dnorm fcn_values<- legend optimize par pdf plogis plot
  pnorm predict runif sd str text
Consider adding
  importFrom("grDevices", "dev.off", "pdf")
  importFrom("graphics", "abline", "legend", "par", "plot", "text")
  importFrom("stats", "dnorm", "optimize", "plogis", "pnorm", "predict",
             "runif", "sd")
  importFrom("utils", "str")
to your NAMESPACE file.