.onAttach: no visible global function definition for
  ‘packageDescription’
eco: no visible global function definition for ‘terms’
eco: no visible global function definition for ‘model.matrix’
eco: no visible global function definition for ‘model.response’
eco: no visible global function definition for ‘model.frame’
ecoBD: no visible global function definition for ‘terms’
ecoBD: no visible global function definition for ‘model.matrix’
ecoBD: no visible global function definition for ‘model.response’
ecoBD: no visible global function definition for ‘model.frame’
ecoBD: no visible binding for global variable ‘weighted.mean’
ecoML: no visible global function definition for ‘terms’
ecoML: no visible global function definition for ‘model.matrix’
ecoML: no visible global function definition for ‘model.response’
ecoML: no visible global function definition for ‘model.frame’
ecoNP: no visible global function definition for ‘terms’
ecoNP: no visible global function definition for ‘model.matrix’
ecoNP: no visible global function definition for ‘model.response’
ecoNP: no visible global function definition for ‘model.frame’
ecoRC: no visible global function definition for ‘terms’
ecoRC: no visible global function definition for ‘model.matrix’
ecoRC: no visible global function definition for ‘model.response’
ecoRC: no visible global function definition for ‘model.frame’
ecoX: no visible global function definition for ‘as.formula’
ecoX: no visible global function definition for ‘model.matrix’
ecoX: no visible global function definition for ‘model.response’
ecoX: no visible global function definition for ‘model.frame’
ecoX: no visible binding for global variable ‘predict’
predict.eco: no visible global function definition for ‘coef’
predict.ecoNP: no visible global function definition for ‘coef’
predict.ecoNPX: no visible global function definition for ‘coef’
predict.ecoX: no visible global function definition for ‘coef’
predict.ecoX: no visible global function definition for ‘terms’
predict.ecoX: no visible global function definition for ‘model.matrix’
summary.eco: no visible global function definition for ‘sd’
summary.eco: no visible global function definition for ‘quantile’
summary.eco: no visible binding for global variable ‘sd’
summary.eco: no visible binding for global variable ‘quantile’
summary.ecoML: no visible global function definition for ‘sd’
summary.ecoML: no visible global function definition for ‘quantile’
summary.ecoML : weighted.var: no visible global function definition for
  ‘weighted.mean’
summary.ecoML: no visible global function definition for
  ‘weighted.mean’
summary.ecoNP: no visible global function definition for ‘sd’
summary.ecoNP: no visible global function definition for ‘quantile’
summary.ecoNP: no visible binding for global variable ‘sd’
summary.ecoNP: no visible binding for global variable ‘quantile’
summary.predict.eco: no visible global function definition for ‘sd’
summary.predict.eco: no visible global function definition for
  ‘quantile’
Undefined global functions or variables:
  as.formula coef model.frame model.matrix model.response
  packageDescription predict quantile sd terms weighted.mean
Consider adding
  importFrom("stats", "as.formula", "coef", "model.frame",
             "model.matrix", "model.response", "predict", "quantile",
             "sd", "terms", "weighted.mean")
  importFrom("utils", "packageDescription")
to your NAMESPACE file.