NPL.bands: no visible global function definition for 'pbeta'
NPL.bands: no visible global function definition for 'qbeta'
R2: no visible global function definition for 'fitted'
R2: no visible global function definition for 'residuals'
R2: no visible global function definition for 'cor'
R2CV: no visible global function definition for 'fitted'
R2CV: no visible global function definition for 'residuals'
R2CV: no visible global function definition for 'influence'
R2CV: no visible global function definition for 'cor'
Rsq: no visible global function definition for 'cor'
Rsq: no visible global function definition for 'fitted'
coxph.disparity: no visible global function definition for 'basehaz'
disparity.glm : <anonymous>: no visible global function definition for
  'resid'
disparity.glm : <anonymous>: no visible global function definition for
  'dnorm'
disparity.glm : <anonymous>: no visible global function definition for
  'fitted'
disparity.glm : <anonymous>: no visible global function definition for
  'dbinom'
disparity.glm : <anonymous>: no visible global function definition for
  'gamma.shape'
disparity.glm : <anonymous>: no visible global function definition for
  'dgamma'
disparity.lm: no visible global function definition for 'resid'
summary.treg: no visible global function definition for 'pt'
summary.treg: no visible global function definition for 'coef'
treg: no visible global function definition for 'model.matrix'
treg: no visible global function definition for 'resid'
treg: no visible global function definition for 'lm.wfit'
treg: no visible global function definition for 'coef'
Undefined global functions or variables:
  basehaz coef cor dbinom dgamma dnorm fitted gamma.shape influence
  lm.wfit model.matrix pbeta pt qbeta resid residuals
Consider adding
  importFrom("stats", "coef", "cor", "dbinom", "dgamma", "dnorm",
             "fitted", "influence", "lm.wfit", "model.matrix", "pbeta",
             "pt", "qbeta", "resid", "residuals")
to your NAMESPACE file.