graph.del: no visible global function definition for ‘var’
h.norm: no visible global function definition for ‘var’
matrix.connected.C: no visible global function definition for ‘combn’
num.con: no visible global function definition for ‘quantile’
pdfClassification: no visible global function definition for ‘quantile’
pdfCluster.data: no visible global function definition for ‘na.omit’
plot.dbs: no visible global function definition for ‘median’
plot.dbs: no visible global function definition for ‘segments’
plot.dbs: no visible global function definition for ‘text’
plot.dbs: no visible global function definition for ‘axis’
plot.kepdf1d: no visible binding for global variable ‘extendrange’
plot.kepdf1d: no visible global function definition for ‘lines’
plot.kepdf1d: no visible global function definition for ‘rug’
plot.kepdf2d: no visible binding for global variable ‘extendrange’
plot.kepdf2d: no visible global function definition for ‘heat.colors’
plot.kepdf2d: no visible global function definition for ‘image’
plot.kepdf2d: no visible global function definition for ‘persp’
plot.kepdf2d: no visible global function definition for ‘quantile’
plot.kepdf2d: no visible global function definition for ‘contour’
plot.kepdf2d: no visible global function definition for ‘points’
plot.kepdfdd : textPanel: no visible global function definition for
  ‘text’
plot.kepdfdd : localAxis: no visible global function definition for
  ‘Axis’
plot.kepdfdd: no visible global function definition for ‘par’
plot.kepdfdd: no visible global function definition for ‘text’
plot.kepdfdd: no visible global function definition for ‘box’
plot.kepdfdd: no visible global function definition for ‘axis’
plot.kepdfdd: no visible global function definition for ‘mtext’
plot.pdfCluster: no visible global function definition for ‘par’
plot.pdfCluster: no visible global function definition for ‘axis’
plot.pdfCluster: no visible global function definition for ‘title’
plot.pdfCluster: no visible global function definition for ‘pairs’
summary.kepdf: no visible global function definition for ‘quantile’
summary.pdfCluster: no visible global function definition for ‘str’
pdfCluster,data.frame: no visible global function definition for
  ‘na.omit’
pdfCluster,matrix: no visible global function definition for ‘na.omit’
pdfCluster,numeric: no visible global function definition for ‘na.omit’
plot,dbs-missing: no visible global function definition for ‘median’
plot,dbs-missing: no visible global function definition for ‘segments’
plot,dbs-missing: no visible global function definition for ‘text’
plot,dbs-missing: no visible global function definition for ‘axis’
plot,pdfCluster-missing: no visible global function definition for
  ‘par’
plot,pdfCluster-missing: no visible global function definition for
  ‘axis’
plot,pdfCluster-missing: no visible global function definition for
  ‘title’
plot,pdfCluster-missing: no visible global function definition for
  ‘pairs’
show,pdfCluster: no visible global function definition for ‘str’
summary,kepdf: no visible global function definition for ‘quantile’
summary,pdfCluster: no visible global function definition for ‘str’
Undefined global functions or variables:
  Axis axis box combn contour extendrange heat.colors image lines
  median mtext na.omit pairs par persp points quantile rug segments str
  text title var
Consider adding
  importFrom("grDevices", "extendrange", "heat.colors")
  importFrom("graphics", "Axis", "axis", "box", "contour", "image",
             "lines", "mtext", "pairs", "par", "persp", "points", "rug",
             "segments", "text", "title")
  importFrom("stats", "median", "na.omit", "quantile", "var")
  importFrom("utils", "combn", "str")
to your NAMESPACE file.