computegvlma: no visible global function definition for 'resid'
computegvlma: no visible global function definition for 'model.matrix'
computegvlma: no visible global function definition for 'coef'
computegvlma: no visible global function definition for 'pchisq'
deletion.gvlma: no visible global function definition for 'fitted'
display.delstats: no visible global function definition for 'plot'
display.delstats: no visible global function definition for 'points'
display.delstats: no visible global function definition for 'var'
display.delstats: no visible global function definition for 'quantile'
display.delstats: no visible global function definition for 'text'
display.delstats: no visible global function definition for 'abline'
gvlma.form: no visible global function definition for 'fitted'
gvlma.lm: no visible global function definition for 'fitted'
plot.gvlma: no visible global function definition for 'par'
plot.gvlma: no visible global function definition for 'model.matrix'
plot.gvlma: no visible global function definition for 'dev.interactive'
plot.gvlma: no visible global function definition for 'fitted'
plot.gvlma: no visible global function definition for 'residuals'
plot.gvlma: no visible global function definition for 'formula'
plot.gvlma: no visible global function definition for 'resid'
plot.gvlma: no visible global function definition for 'plot'
plot.gvlma: no visible global function definition for 'hist'
plot.gvlma: no visible global function definition for 'qqnorm'
plot.gvlma: no visible global function definition for 'qqline'
plot.gvlmaDel: no visible global function definition for 'par'
plot.gvlmaDel: no visible global function definition for
  'dev.interactive'
plot.gvlmaDel: no visible global function definition for 'plot'
update.gvlma: no visible global function definition for 'fitted'
Undefined global functions or variables:
  abline coef dev.interactive fitted formula hist model.matrix par
  pchisq plot points qqline qqnorm quantile resid residuals text var
Consider adding
  importFrom("grDevices", "dev.interactive")
  importFrom("graphics", "abline", "hist", "par", "plot", "points",
             "text")
  importFrom("stats", "coef", "fitted", "formula", "model.matrix",
             "pchisq", "qqline", "qqnorm", "quantile", "resid",
             "residuals", "var")
to your NAMESPACE file.