Predict.matrix.lme: no visible global function definition for
  'integrate'
asp2: no visible global function definition for 'as.formula'
asp2: no visible global function definition for 'var'
aspHetero: no visible global function definition for 'fitted'
aspHetero: no visible global function definition for 'var'
aspOS: no visible global function definition for 'as.formula'
aspOS: no visible global function definition for 'var'
aspmFormReadOS: no visible global function definition for
  'model.matrix'
aspmFormReadOS: no visible global function definition for 'as.formula'
aspmFormReadOS: no visible binding for global variable 'contrasts'
aspmOS: no visible global function definition for 'as.formula'
aspmOS: no visible binding for global variable 'glm.fit'
aspmOS: no visible global function definition for 'binomial'
aspmOS: no visible global function definition for 'poisson'
default.knots: no visible global function definition for 'quantile'
plot.asp: no visible global function definition for 'grey'
plot.scbTest: no visible global function definition for 'grey'
plot.scbTest: no visible global function definition for 'par'
plot.scbTest: no visible global function definition for 'polygon'
plot.scbTest: no visible global function definition for 'lines'
plot.scbTest: no visible global function definition for 'abline'
plot.scbm: no visible global function definition for 'grey'
plot.scbm: no visible global function definition for 'par'
plot.scbm: no visible global function definition for 'dev.interactive'
plot.scbm: no visible global function definition for 'devAskNewPage'
plot.scbm: no visible global function definition for 'polygon'
plot.scbm: no visible global function definition for 'lines'
plot.scbm: no visible global function definition for 'points'
plot.scbm: no visible global function definition for 'abline'
predict.asp: no visible global function definition for 'model.matrix'
predict.asp: no visible global function definition for 'as.formula'
smooth.construct.os.smooth.spec: no visible global function definition
  for 'integrate'
smooth.construct.tl.smooth.spec: no visible global function definition
  for 'quantile'
spmDesignOS: no visible global function definition for 'dist'
spmOS: no visible global function definition for 'as.formula'
spmOS: no visible global function definition for 'lm'
spmOS: no visible global function definition for 'glm'
spmOS: no visible global function definition for 'binomial'
spmOS: no visible global function definition for 'poisson'
summary.asp: no visible global function definition for 'pt'
Undefined global functions or variables:
  abline as.formula binomial contrasts dev.interactive devAskNewPage
  dist fitted glm glm.fit grey integrate lines lm model.matrix par
  points poisson polygon pt quantile var
Consider adding
  importFrom("grDevices", "dev.interactive", "devAskNewPage", "grey")
  importFrom("graphics", "abline", "lines", "par", "points", "polygon")
  importFrom("stats", "as.formula", "binomial", "contrasts", "dist",
             "fitted", "glm", "glm.fit", "integrate", "lm",
             "model.matrix", "poisson", "pt", "quantile", "var")
to your NAMESPACE file.