f1.ld.f1 : case2x2: no visible global function definition for 'pnorm'
f1.ld.f1 : case2x2: no visible global function definition for 'pt'
f1.ld.f1 : wald.test: no visible global function definition for
  'pchisq'
f1.ld.f1 : anova.test: no visible global function definition for
  'pchisq'
f1.ld.f1 : anova.test: no visible global function definition for 'pf'
f1.ld.f1 : simple.time.test: no visible global function definition for
  'pchisq'
f1.ld.f1 : simple.time.test: no visible global function definition for
  'pnorm'
f1.ld.f1 : simple.time.test: no visible global function definition for
  'pt'
f1.ld.f1 : pair.comp.test: no visible global function definition for
  'pnorm'
f1.ld.f1 : pair.comp.test: no visible global function definition for
  'pt'
f1.ld.f1 : pattern.group: no visible global function definition for
  'pt'
f1.ld.f1 : pattern.group: no visible global function definition for
  'pnorm'
f1.ld.f1: no visible global function definition for 'plot'
f1.ld.f1: no visible global function definition for 'axis'
f1.ld.f1: no visible global function definition for 'points'
f1.ld.f1: no visible global function definition for 'legend'
f1.ld.f1: no visible global function definition for 'title'
f1.ld.f2: no visible global function definition for 'pchisq'
f1.ld.f2: no visible global function definition for 'pf'
f1.ld.f2: no visible global function definition for 'par'
f1.ld.f2: no visible global function definition for 'plot'
f1.ld.f2: no visible global function definition for 'title'
f1.ld.f2: no visible global function definition for 'points'
f1.ld.f2: no visible global function definition for 'axis'
f1.ld.f2: no visible global function definition for 'legend'
f2.ld.f1: no visible global function definition for 'pchisq'
f2.ld.f1: no visible global function definition for 'pf'
f2.ld.f1: no visible global function definition for 'par'
f2.ld.f1: no visible global function definition for 'plot'
f2.ld.f1: no visible global function definition for 'title'
f2.ld.f1: no visible global function definition for 'points'
f2.ld.f1: no visible global function definition for 'axis'
f2.ld.f1: no visible global function definition for 'legend'
ld.ci: no visible global function definition for 'qnorm'
ld.f1: no visible global function definition for 'pchisq'
ld.f1: no visible global function definition for 'pf'
ld.f1: no visible global function definition for 'pnorm'
ld.f1: no visible global function definition for 'pt'
ld.f1: no visible global function definition for 'plot'
ld.f1: no visible global function definition for 'axis'
ld.f1: no visible global function definition for 'title'
ld.f2: no visible global function definition for 'pchisq'
ld.f2: no visible global function definition for 'pf'
ld.f2: no visible global function definition for 'plot'
ld.f2: no visible global function definition for 'points'
ld.f2: no visible global function definition for 'axis'
ld.f2: no visible global function definition for 'legend'
ld.f2: no visible global function definition for 'title'
nparLD: no visible global function definition for 'model.frame'
nparLD: no visible global function definition for 'plot'
nparLD: no visible global function definition for 'points'
nparLD: no visible global function definition for 'axis'
nparLD: no visible global function definition for 'title'
nparLD: no visible global function definition for 'legend'
nparLD: no visible global function definition for 'par'
Undefined global functions or variables:
  axis legend model.frame par pchisq pf plot pnorm points pt qnorm
  title
Consider adding
  importFrom("graphics", "axis", "legend", "par", "plot", "points",
             "title")
  importFrom("stats", "model.frame", "pchisq", "pf", "pnorm", "pt",
             "qnorm")
to your NAMESPACE file.