glmClust: no visible global function definition for ‘glm’
glmClust: no visible global function definition for ‘terms’
glmClust: no visible global function definition for ‘logLik’
glmClust: no visible global function definition for ‘coefficients’
glmClust : <anonymous>: no visible global function definition for
  ‘dist’
glmClust: no visible global function definition for ‘new’
glmClust: no visible global function definition for ‘AIC’
glmClust: no visible global function definition for ‘BIC’
kmlCov: no visible global function definition for ‘new’
log_lik: no visible global function definition for ‘dnorm’
rwFormula: no visible global function definition for ‘as.formula’
which_best: no visible global function definition for ‘new’
plot,GlmCluster : make.table: no visible global function definition for
  ‘par’
plot,GlmCluster : draw.title.cell: no visible global function
  definition for ‘text’
plot,GlmCluster : draw.title.cell: no visible global function
  definition for ‘rect’
plot,GlmCluster: no visible global function definition for
  ‘split.screen’
plot,GlmCluster: no visible global function definition for ‘screen’
plot,GlmCluster: no visible global function definition for ‘points’
plot,GlmCluster: no visible global function definition for ‘text’
plot,GlmCluster: no visible global function definition for
  ‘coefficients’
plot,KmlCovList: no visible global function definition for ‘dev.cur’
plot,KmlCovList: no visible global function definition for ‘dev.off’
Undefined global functions or variables:
  AIC BIC as.formula coefficients dev.cur dev.off dist dnorm glm logLik
  new par points rect screen split.screen terms text
Consider adding
  importFrom("grDevices", "dev.cur", "dev.off")
  importFrom("graphics", "par", "points", "rect", "screen",
             "split.screen", "text")
  importFrom("methods", "new")
  importFrom("stats", "AIC", "BIC", "as.formula", "coefficients", "dist",
             "dnorm", "glm", "logLik", "terms")
to your NAMESPACE file (and ensure that your DESCRIPTION Imports field
contains 'methods').