Lifedata.MLE: no visible global function definition for 'model.matrix'
Lifedata.MLE: no visible global function definition for 'model.extract'
Lifedata.MLE: no visible binding for global variable 'qnorm'
Lifedata.MLE: no visible binding for global variable 'pnorm'
Lifedata.MLE: no visible binding for global variable 'qlogis'
Lifedata.MLE: no visible binding for global variable 'plogis'
Lifedata.MLE: no visible global function definition for 'lm'
MIC.splines.basis: no visible global function definition for 'quantile'
ce.dat.prep: no visible global function definition for 'aggregate'
clme: no visible global function definition for 'sd'
deglmx: no visible global function definition for 'lm'
deglmx: no visible global function definition for 'formula'
lifetime.mle: no visible global function definition for 'optim'
miniusloglik.ce.xt.logis: no visible global function definition for
  'dlogis'
miniusloglik.ce.xt.logis: no visible global function definition for
  'plogis'
miniusloglik.ce.xt.norm: no visible global function definition for
  'dnorm'
miniusloglik.ce.xt.norm: no visible global function definition for
  'pnorm'
miniusloglik.logis.wts: no visible global function definition for
  'dlogis'
miniusloglik.logis.wts: no visible global function definition for
  'plogis'
miniusloglik.normal.wts: no visible global function definition for
  'dnorm'
miniusloglik.normal.wts: no visible global function definition for
  'pnorm'
optim.ftn.2: no visible global function definition for 'rnorm'
plot.MICsplines: no visible global function definition for 'matplot'
plotdeglmx: no visible global function definition for 'plot'
plotdeglmx: no visible global function definition for 'abline'
plotdeglmx: no visible global function definition for 'lines'
rlev: no visible global function definition for 'runif'
rsev: no visible global function definition for 'runif'
Undefined global functions or variables:
  abline aggregate dlogis dnorm formula lines lm matplot model.extract
  model.matrix optim plogis plot pnorm qlogis qnorm quantile rnorm
  runif sd
Consider adding
  importFrom("graphics", "abline", "lines", "matplot", "plot")
  importFrom("stats", "aggregate", "dlogis", "dnorm", "formula", "lm",
             "model.extract", "model.matrix", "optim", "plogis", "pnorm",
             "qlogis", "qnorm", "quantile", "rnorm", "runif", "sd")
to your NAMESPACE file.