correlation: no visible global function definition for ‘cor.test’
cross: no visible binding for global variable ‘sd’
cross: no visible binding for global variable ‘quantile’
cross: no visible binding for global variable ‘is.Surv’
cross_list: no visible binding for global variable ‘sd’
cross_list: no visible binding for global variable ‘quantile’
elements: no visible global function definition for ‘as.formula’
expand_formula: no visible global function definition for ‘as.formula’
is.numeric.and.not.surv: no visible global function definition for
  ‘is.Surv’
left_right: no visible global function definition for ‘as.formula’
left_right: no visible global function definition for ‘terms’
parse_data: no visible global function definition for ‘model.frame’
remix: no visible binding for global variable ‘sd’
remix: no visible binding for global variable ‘quantile’
remix: no visible global function definition for ‘is.formula’
remix : <anonymous>: no visible global function definition for
  ‘is.Surv’
remix: no visible binding for global variable ‘is.Surv’
remix: no visible global function definition for ‘llply’
summarize: no visible binding for global variable ‘sd’
summarize: no visible binding for global variable ‘quantile’
summarize.by: no visible binding for global variable ‘sd’
summarize.by: no visible binding for global variable ‘quantile’
summarize.by: no visible global function definition for ‘dlply’
summarize.by: no visible global function definition for ‘.’
summarize.data.frame: no visible binding for global variable ‘sd’
summarize.data.frame: no visible binding for global variable ‘quantile’
summarize.data.frame.by: no visible binding for global variable ‘sd’
summarize.data.frame.by: no visible binding for global variable
  ‘quantile’
summarize.data.frame.by: no visible global function definition for
  ‘dlply’
summarize.data.frame.by : <anonymous>: no visible global function
  definition for ‘stack’
survival: no visible global function definition for ‘as.formula’
survival: no visible global function definition for ‘survfit’
survival: no visible global function definition for ‘model.frame’
survival: no visible global function definition for ‘daply’
survival: no visible global function definition for ‘.’
test.summarize.auto : <anonymous>: no visible global function
  definition for ‘shapiro.test’
test.summarize.auto: no visible global function definition for
  ‘bartlett.test’
test.summarize.auto: no visible global function definition for
  ‘kruskal.test’
test.summarize.auto: no visible global function definition for
  ‘oneway.test’
test.summarize.kruskal: no visible global function definition for
  ‘kruskal.test’
test.summarize.oneway.equalvar: no visible global function definition
  for ‘oneway.test’
test.summarize.oneway.unequalvar: no visible global function definition
  for ‘oneway.test’
test.survival.logrank: no visible global function definition for
  ‘survdiff’
test.survival.logrank: no visible global function definition for
  ‘pchisq’
test.tabular.auto: no visible global function definition for
  ‘chisq.test’
test.tabular.auto: no visible global function definition for
  ‘fisher.test’
test.tabular.fisher: no visible global function definition for
  ‘fisher.test’
Undefined global functions or variables:
  . as.formula bartlett.test chisq.test cor.test daply dlply
  fisher.test is.Surv is.formula kruskal.test llply model.frame
  oneway.test pchisq quantile sd shapiro.test stack survdiff survfit
  terms
Consider adding
  importFrom("stats", "as.formula", "bartlett.test", "chisq.test",
             "cor.test", "fisher.test", "kruskal.test", "model.frame",
             "oneway.test", "pchisq", "quantile", "sd", "shapiro.test",
             "terms")
  importFrom("utils", "stack")
to your NAMESPACE file.