Stouffer.test: no visible global function definition for ‘qnorm’
Stouffer.test: no visible global function definition for ‘pnorm’
adj.test: no visible global function definition for ‘update’
kaps.fit: no visible global function definition for ‘update’
kaps.perm: no visible global function definition for ‘update’
kaps.perm: no visible global function definition for ‘as.formula’
kaps.perm: no visible global function definition for ‘pchisq’
km.curve: no visible global function definition for ‘update’
km.curve: no visible global function definition for ‘mtext’
km.curve: no visible global function definition for ‘axis’
pairwise.logrank.test: no visible global function definition for
  ‘pchisq’
pairwise.logrank.test: no visible global function definition for
  ‘p.adjust’
plot,kaps-missing: no visible global function definition for ‘legend’
plot,kaps-missing: no visible global function definition for ‘par’
plot,kaps-missing: no visible global function definition for ‘mtext’
plot,kaps-missing: no visible global function definition for ‘axis’
plot,kaps-missing: no visible global function definition for
  ‘locfit.censor’
plot,kaps-missing: no visible global function definition for ‘lines’
plot,kaps-missing: no visible global function definition for ‘abline’
plot,kaps-missing: no visible global function definition for ‘colors’
predict,kaps: no visible global function definition for ‘update’
print,kaps: no visible global function definition for ‘combn’
print,kaps: no visible global function definition for ‘update’
print,kaps: no visible global function definition for ‘pchisq’
print,kaps: no visible global function definition for ‘p.adjust’
show,kaps: no visible global function definition for ‘pchisq’
show,kaps: no visible global function definition for ‘symnum’
show,kaps: no visible global function definition for ‘combn’
show,kaps: no visible global function definition for ‘update’
show,kaps: no visible global function definition for ‘p.adjust’
summary,kaps: no visible global function definition for ‘update’
Undefined global functions or variables:
  abline as.formula axis colors combn legend lines locfit.censor mtext
  p.adjust par pchisq pnorm qnorm symnum update
Consider adding
  importFrom("grDevices", "colors")
  importFrom("graphics", "abline", "axis", "legend", "lines", "mtext",
             "par")
  importFrom("stats", "as.formula", "p.adjust", "pchisq", "pnorm",
             "qnorm", "symnum", "update")
  importFrom("utils", "combn")
to your NAMESPACE file.