drawPedigree : prune: no visible global function definition for
  ‘na.omit’
drawPedigree: no visible global function definition for ‘flush.console’
drawPedigree: no visible global function definition for ‘colours’
fixPedigree: no visible global function definition for ‘flush.console’
genomesim : extractA: no visible global function definition for
  ‘is.genotype’
genomesim : extractA : <anonymous>: no visible global function
  definition for ‘nallele’
genomesim : mutation: no visible global function definition for
  ‘rbinom’
genomesim : mutation: no visible global function definition for ‘rnorm’
genomesim: no visible global function definition for ‘runif’
genomesim: no visible global function definition for ‘rnorm’
genomesim : rndAllele: no visible global function definition for
  ‘runif’
genomesim : Kosambi.c: no visible global function definition for
  ‘uniroot’
genomesim : segregate: no visible global function definition for
  ‘rbinom’
genomesim: no visible global function definition for ‘flush.console’
microsim : randAllele: no visible global function definition for
  ‘runif’
microsim : assignGenotype: no visible global function definition for
  ‘rbinom’
microsim: no visible global function definition for ‘runif’
microsim : rbinfunc: no visible global function definition for ‘rbinom’
pedStatSummary: no visible global function definition for
  ‘weighted.mean’
pedigreeStats : prune: no visible global function definition for
  ‘na.omit’
pedigreeStats: no visible global function definition for
  ‘flush.console’
pedigreeStats: no visible global function definition for ‘colors’
pedigreeStats: no visible global function definition for ‘par’
pedigreeStats: no visible global function definition for ‘plot’
pedigreeStats: no visible global function definition for ‘lines’
pedigreeStats: no visible global function definition for ‘mtext’
pedigreeStats: no visible global function definition for ‘hist’
pedigreeStats: no visible global function definition for ‘postscript’
pedigreeStats: no visible global function definition for ‘dev.off’
pedigreeStats: no visible global function definition for ‘barplot’
pedigreeStats: no visible global function definition for ‘axis’
pedigreeStats: no visible global function definition for ‘gray.colors’
pedigreeStats: no visible global function definition for ‘dev.new’
phensim: no visible global function definition for ‘flush.console’
phensim: no visible global function definition for ‘rmvnorm’
phensim: no visible global function definition for ‘rnorm’
phensim: no visible global function definition for ‘rbinom’
phensim : rbinfunc: no visible global function definition for ‘rbinom’
Undefined global functions or variables:
  axis barplot colors colours dev.new dev.off flush.console gray.colors
  hist is.genotype lines mtext na.omit nallele par plot postscript
  rbinom rmvnorm rnorm runif uniroot weighted.mean
Consider adding
  importFrom("grDevices", "colors", "colours", "dev.new", "dev.off",
             "gray.colors", "postscript")
  importFrom("graphics", "axis", "barplot", "hist", "lines", "mtext",
             "par", "plot")
  importFrom("stats", "na.omit", "rbinom", "rnorm", "runif", "uniroot",
             "weighted.mean")
  importFrom("utils", "flush.console")
to your NAMESPACE file.