ave.sorted: warning in matrix(y[lens == i], nr = i): partial argument
  match of ‘nr’ to ‘nrow’
ave.sorted: warning in matrix(weights[lens == i], nr = i): partial
  argument match of ‘nr’ to ‘nrow’
liso.adaptive: warning in multistep(coefc = rep(0, (nrow(x) - 1) *
  ncol(x)), x = x, intercept = sum(weights * y)/sum(weights), residual
  = y - sum(weights * y)/sum(weights), sorter = getSort(x)): partial
  argument match of ‘coefc’ to ‘coefchain’
liso.backfit: warning in multistep(coefc = rep(0, (nrow(x) - 1) *
  ncol(x)), x = x, intercept = sum(weights * y)/sum(weights), residual
  = y - sum(weights * y)/sum(weights), sorter = getSort(x)): partial
  argument match of ‘coefc’ to ‘coefchain’
&.multistep : addup: no visible global function definition for ‘approx’
cv.liso: no visible global function definition for ‘tail’
cv.liso: no visible binding for global variable ‘var’
error.bars: no visible global function definition for ‘segments’
liso.maxlamb: no visible global function definition for ‘pava’
objsort : <anonymous>: no visible global function definition for
  ‘object.size’
pavareg: no visible global function definition for ‘pava’
pavaregorig: no visible global function definition for ‘pava’
plot.multistep: no visible global function definition for ‘par’
plot.multistep: no visible global function definition for ‘tail’
plot.multistep: no visible global function definition for ‘plot’
plot.multistep: no visible global function definition for ‘lines’
plot.multistep: no visible global function definition for ‘title’
plot.multistep: no visible global function definition for ‘points’
plotCV: no visible global function definition for ‘plot’
repeatplot: no visible global function definition for ‘plot’
repeatplot: no visible global function definition for ‘lines’
repeatplot: no visible global function definition for ‘points’
Undefined global functions or variables:
  approx lines object.size par pava plot points segments tail title var
Consider adding
  importFrom("graphics", "lines", "par", "plot", "points", "segments",
             "title")
  importFrom("stats", "approx", "var")
  importFrom("utils", "object.size", "tail")
to your NAMESPACE file.