CADFpvalues: no visible binding for global variable ‘coeffs_ct’
CADFpvalues: no visible binding for global variable ‘coeffs_c’
CADFpvalues: no visible binding for global variable ‘coeffs_nc’
CADFpvalues: no visible global function definition for ‘qnorm’
CADFpvalues: no visible global function definition for ‘lm’
CADFpvalues: no visible global function definition for ‘pnorm’
CADFtest.default: no visible global function definition for ‘is.ts’
CADFtest.default: no visible global function definition for ‘ts’
CADFtest.default: no visible global function definition for ‘start’
CADFtest.default: no visible global function definition for ‘frequency’
CADFtest.formula: no visible global function definition for
  ‘model.frame’
CADFtest.formula: no visible global function definition for
  ‘model.response’
CADFtest.formula: no visible global function definition for
  ‘model.matrix’
bread.mlm: no visible global function definition for ‘coef’
estfun.mlm: no visible global function definition for ‘model.response’
estfun.mlm: no visible global function definition for ‘model.frame’
estfun.mlm: no visible global function definition for ‘coef’
estmodel: no visible global function definition for ‘is.ts’
estmodel: no visible global function definition for ‘ts’
estmodel: no visible global function definition for ‘start’
estmodel: no visible global function definition for ‘frequency’
estmodel: no visible global function definition for ‘dynlm’
estmodel: no visible global function definition for ‘formula’
estmodel: no visible global function definition for ‘lsfit’
estmodel: no visible global function definition for ‘punitroot’
estmodel: no visible global function definition for ‘lm’
estmodel: no visible global function definition for ‘kernHAC’
plot.CADFtest: no visible global function definition for ‘par’
plot.CADFtest: no visible global function definition for ‘layout’
plot.CADFtest: no visible global function definition for ‘residuals’
plot.CADFtest: no visible global function definition for ‘rstandard’
plot.CADFtest: no visible global function definition for ‘plot’
plot.CADFtest: no visible global function definition for ‘abline’
plot.CADFtest: no visible global function definition for
  ‘jarque.bera.test’
plot.CADFtest: no visible global function definition for ‘density’
plot.CADFtest: no visible global function definition for ‘acf’
plot.CADFtest: no visible global function definition for ‘pacf’
residuals.CADFtest: no visible global function definition for
  ‘residuals.lm’
summary.CADFtest: no visible global function definition for
  ‘summary.lm’
summary.CADFtest: no visible global function definition for ‘lm’
update.CADFtest: no visible global function definition for
  ‘update.formula’
Undefined global functions or variables:
  abline acf coef coeffs_c coeffs_ct coeffs_nc density dynlm formula
  frequency is.ts jarque.bera.test kernHAC layout lm lsfit model.frame
  model.matrix model.response pacf par plot pnorm punitroot qnorm
  residuals residuals.lm rstandard start summary.lm ts update.formula
Consider adding
  importFrom("graphics", "abline", "layout", "par", "plot")
  importFrom("stats", "acf", "coef", "density", "formula", "frequency",
             "is.ts", "lm", "lsfit", "model.frame", "model.matrix",
             "model.response", "pacf", "pnorm", "qnorm", "residuals",
             "residuals.lm", "rstandard", "start", "summary.lm", "ts",
             "update.formula")
to your NAMESPACE file.